Understanding the Basics of Residential Heat Pumps

Are Ducted or Ductless Heat Pumps Better for Open Floor Plans?

How do you effectively heat and cool a sprawling main floor without compromising the clean aesthetics of your architectural design? At Presidential Ventilation, we know that when weighing Ducted vs. Ductless Heat Pumps for Open-Concept New Builds in Bedford, the answer comes down to finalizing your HVAC blueprints before the first sheet of drywall goes up. Choosing between the seamless, hidden look of a fully ducted system and the targeted, hyper-efficient control of ductless heads is one of the most critical decisions in the new construction process. If you wait too long to decide, you risk structural roadblocks, electrical panel limitations, and compromised airflow that can leave your beautiful new living space feeling drafty during the winter months.

For a complete breakdown of your choices, explore our comprehensive guide to heat pump installation options.

Across Bedford new construction developments, our team consistently sees homeowners grappling with this exact dilemma. Modern architectural trends favor wide-open sightlines, vaulted ceilings, and massive windows. While these features create stunning living environments, they also introduce complex heating and cooling challenges. To make the right choice for your new build, you need to look beyond the equipment itself and understand how different heat pump configurations interact with the specific layout, volume, and building materials of your future home.

Why Open-Concept Architecture Demands Strategic Airflow Planning

In our years of designing HVAC systems for Mount Uniacke and Bedford homes, we've learned that heating a large, unpartitioned space requires a solid understanding of fluid dynamics and thermal physics. In a traditional home with smaller, enclosed rooms, the HVAC system simply needs to fill a confined box with conditioned air until the thermostat registers the desired temperature. Open-concept layouts completely change this equation. Without interior walls to trap and guide the air, heat naturally rises to the highest points of the room, while heavier cold air settles near the floor. If your system is not engineered for these conditions, your equipment will run constantly, yet your living spaces will still suffer from uncomfortable temperature swings.

The Challenge of High Ceilings and Large Windows

When you remove interior walls and raise the ceiling height, you drastically increase the total cubic volume of air that needs to be conditioned. Furthermore, modern designs heavily feature expansive glass surfaces. Even the most energy-efficient double- or triple-pane windows offer significantly less insulation than a standard insulated wall, contributing to rapid heat loss during cold snaps and excessive heat gain during sunny summer afternoons. To combat these architectural hurdles, we always ensure HVAC planning for open-concept homes follows a strict, calculated approach.

1. Calculate accurate heating loads: A standard square-footage calculation is not enough. Your HVAC designer must calculate the total cubic volume of the space, factoring in the exact insulation values of your specific windows, doors, and roofing materials.

2. Determine required throw distance: "Throw distance" refers to how far the equipment can physically push conditioned air into a room before the air loses its momentum. Pushing warm air to the dead center of a massive, 800-square-foot great room requires specific fan speeds and strategic vent or unit placement.

3. Map out return air pathways: Supplying warm air is only half the battle. Your system must efficiently pull cold, stale air back to the air handler to be reconditioned. In open spaces, poorly placed return vents can lead to stagnant air pockets and isolated cold spots.

4. Account for solar heat gain: South-facing windows will naturally heat up certain zones of your open floor plan faster than others. Your system must be capable of balancing these natural temperature variations without overcooling the shaded areas of the home.

The Ducted Approach: Seamless Aesthetics and Whole-Home Distribution

For many homeowners building their dream house, preserving the interior design is paramount. This is where ducted heat pump systems truly shine in new construction. By utilizing a central indoor air handler connected to a network of concealed sheet metal or fiberglass ductwork, a ducted system delivers conditioned air through unobtrusive floor, wall, or ceiling registers. The bulky equipment remains completely hidden in a mechanical room, basement, or attic space.

In Bedford new construction developments, integrating a ducted system during the framing phase is far easier and more cost-effective than attempting a retrofit later. The open walls allow technicians to route the ductwork perfectly, ensuring optimal airflow geometry without having to compromise on ceiling heights or build unsightly bulkheads. During a recent residential construction installation, our lead technician, Nick, performed a highly thorough installation for a family building a new home. By getting involved early, Nick was able to address all the customers' thoughts and questions regarding vent placement, ensuring the final product delivered perfectly balanced temperatures while remaining virtually invisible.

• Aesthetics — Ducted Heat Pump Pros: Completely hidden equipment; only flush registers and grilles are visible in the living space. — Ducted Heat Pump Cons: Requires dedicated mechanical space for the central air handler and ductwork chases.

• Airflow Distribution — Ducted Heat Pump Pros: Provides even, whole-home temperature control; eliminates isolated cold zones effectively. — Ducted Heat Pump Cons: Cannot easily provide different temperatures for different rooms without advanced, costly zoning dampers.

• Installation Timing — Ducted Heat Pump Pros: Can be seamlessly integrated into the architectural blueprints during the framing phase. — Ducted Heat Pump Cons: Must be finalized before drywall; retrofitting or changing the design later is highly disruptive.

• Air Filtration — Ducted Heat Pump Pros: Allows for the installation of whole-home media filters, UV purifiers, and central humidifiers. — Ducted Heat Pump Cons: Ducts require periodic cleaning to maintain optimal indoor air quality over the years.

The Ductless Approach: Precision Zoning and Wall Placement Realities

If your open-concept build features complex rooflines, limited attic space, or a sprawling layout that naturally divides into distinct functional areas, ductless heat pumps offer an incredibly efficient alternative. Instead of relying on a central air handler and ductwork, a ductless system utilizes an outdoor compressor connected directly to one or more indoor air-handling units (often called mini-split heads or cassettes) mounted on the walls, floors, or recessed into the ceiling.

The primary advantage our team sees with a ductless approach in Bedford new construction developments is hyper-targeted zoning. You can independently control the temperature in the kitchen, the living room, and the master suite. However, this precision comes with an aesthetic trade-off. Wall-mounted units are visible in the living space. To maximize throw distance and ensure the conditioned air reaches the center of your open floor plan, these units must be strategically placed high on exterior walls, free from obstructions like tall furniture or heavy drapery. While modern cassettes are sleek and unobtrusive, their placement must be factored into your interior design plans early on to ensure they blend naturally with your decor.

The 'Before Drywall' Deadline: Electrical and Blueprint Integration

A pattern we see often in new construction is treating the HVAC system as an afterthought. Whether you lean toward a ducted or ductless configuration, the decision must be finalized well before the drywall installation begins. Modern heat pumps are highly efficient, but they still require dedicated electrical circuits, specific load calculations, and physical space within the wall cavities for refrigerant lines, condensate drains, and control wiring.

If you delay this decision, you may find that your electrical panel was not sized to handle the specific amperage of your chosen outdoor compressor, or that the framing does not accommodate the necessary ductwork drops. To keep your Bedford new construction development on schedule and on budget, we recommend following this critical planning checklist in coordination with your builder and electrical contractor:

• Finalize the heat loss/heat gain calculation: Have your HVAC contractor review the finalized architectural plans, including window specifications and insulation values, to determine the exact capacity required.

• Coordinate with the electrician: Ensure the main electrical panel is sized appropriately for the heat pump's maximum amp draw, and that dedicated circuits are roughed in to the exact locations of the indoor and outdoor units.

• Map the refrigerant and drain lines: Ductless systems require copper line sets and PVC drain pipes to run through the walls from the indoor heads to the outdoor unit. These must be installed and pressure-tested before the walls are closed up.

• Design the ductwork layout: For ducted systems, work with the builder to ensure joist spaces and wall cavities are kept clear of plumbing and electrical runs where trunk lines and branch ducts need to go.

• Plan the outdoor unit placement: Select a location for the outdoor compressor that minimizes noise near bedrooms, complies with local property setbacks, and remains accessible for winter snow clearing.

Combating the Coastal Chill: Sizing for Maritime Weather

Having installed countless systems across Mount Uniacke and the greater Halifax area, we know firsthand that the Nova Scotia winter heating season is notoriously demanding. We don't just experience cold temperatures; we face a damp, penetrating coastal chill, high humidity, and rapid temperature fluctuations that can swing from freezing rain to deep sub-zero conditions in a matter of hours.

These maritime weather patterns heavily impact heat pump performance. If a system is undersized for a sprawling open floor plan, it will run continuously during coastal cold snaps, struggling to push warm air across large rooms while simultaneously fighting to execute its automatic defrost cycles. Conversely, an oversized system will short-cycle, turning on and off too rapidly to properly dehumidify the air, leaving your home feeling clammy during our humid summers. Selecting a cold-climate rated unit that maintains its heating capacity down to deep freezing temperatures is critical. For a deeper dive into units rated specifically for our coastal environment, review our guide on the best ducted heat pumps for Halifax area homes. Proper sizing ensures your system can gracefully handle the heavy lifting required during the harshest months without overworking the compressor.

Maximizing Efficiency Nova Scotia Rebates for Your New Build

Building a new home is a significant financial investment, but integrating a high-efficiency heat pump can unlock substantial provincial incentives. Efficiency Nova Scotia offers robust rebate programs designed to encourage the adoption of energy-saving technologies in new constructions. However, navigating the qualification requirements requires strict attention to detail and professional oversight.

To ensure your new build qualifies for these valuable incentives, you must adhere to several key requirements. First and foremost, the equipment must meet specific performance tiers, and the installation must be completed by an approved, certified dealer. As a trusted Daikin Comfort Pro dealer with deep roots in Nova Scotia's residential and commercial construction sectors, our Presidential Ventilation team guarantees that your system is optimally sized for your complex open layout and perfectly aligned with all provincial rebate criteria.

• Certified Installation: Rebates are strictly contingent on the system being installed by a recognized professional. DIY installations or work done by uncertified contractors will immediately void your eligibility.

• Electrical Compliance: Upgrading from traditional heating plans to a central heat pump often requires careful electrical panel coordination. For example, during a recent project involving a transition to a central heat pump, our team member Jack worked closely with the homeowners to resolve their electrical panel concerns, ensuring the new load was safely accommodated and fully compliant with code.

• Proper Documentation: You will need to submit detailed invoices, AHRI certificates (proving the efficiency rating of the matched indoor and outdoor units), and warranty documentation. A professional contractor will handle the bulk of this paperwork on your behalf.

• Pre-Approval Requirements: Some new construction programs require energy modeling or pre-approval before the equipment is purchased. Always consult with your HVAC expert during the blueprint phase to ensure no steps are missed.

Frequently Asked Questions About Heat Pumps for New Homes

Is ducted or ductless better for a new build?

The better option depends entirely on your architectural design and aesthetic preferences. Ducted systems are often preferred in new builds because the ductwork can be easily hidden during the framing stage, providing invisible, whole-home comfort. Ductless systems are excellent if your design lacks the ceiling space for ductwork or if you prioritize highly specific, room-by-room temperature zoning.

Where should mini splits go in an open concept home?

In an open concept layout, mini-split heads should be placed high on exterior walls, pointing toward the center of the largest living areas to maximize airflow "throw distance." They should be positioned away from direct heat sources, tall furniture, or corners that might obstruct the fan's ability to distribute conditioned air evenly across the room.

How many ductless heads do I need for an open concept layout?

The exact number depends on the total cubic volume of the space, the ceiling height, and the insulation values of your windows and walls. Generally, a sprawling open-concept main floor requires at least one large-capacity head in the primary living area, often supplemented by a smaller head in the kitchen or dining zone to ensure even temperatures and eliminate cold spots.

Can you put a mini split in an open concept house?

Yes, absolutely. Mini-splits are highly effective in open-concept houses, provided they are properly sized for the cubic volume of the space. Because open layouts lack walls to trap air, the mini-split must have a powerful enough fan to push the conditioned air across the large expanse, requiring careful calculation by an HVAC professional.

What is the best heating system for a new house in Nova Scotia?

The best heating system for a new house in Nova Scotia is a cold-climate rated heat pump (either ducted or ductless) paired with a reliable backup heat source. Because of the damp, freezing coastal winters, the system must be specifically engineered to maintain high heating capacities at sub-zero temperatures while efficiently managing summer humidity.

How do I qualify for heat pump rebates in Nova Scotia?

To qualify for heat pump rebates through Efficiency Nova Scotia, you must purchase an eligible, high-efficiency system on their approved product list. Furthermore, the system must be installed by a certified contractor, and you must submit all required AHRI certificates, invoices, and warranty documentation within the program's specified timeframe.

Finalize Your HVAC Blueprint With a Local Expert

Choosing between a ducted and ductless heat pump for your open-concept new build is a decision that impacts your daily comfort, your interior design, and your long-term energy costs. Whether you prefer the invisible, whole-home distribution of concealed ductwork or the hyper-efficient, zoned control of a ductless setup, the most important step is finalizing your strategy before the drywall is hung. Proper planning ensures your electrical panels are sized correctly, your airflow is mapped to eliminate cold spots, and your system meets all requirements for provincial rebates.

When it comes to executing these plans, experience matters. During a recent winter commercial and residential project, our Presidential Ventilation installation team was able to complete a complex heat pump installation efficiently within a single day, ensuring the home was protected from the freezing temperatures without delaying the overall construction schedule. If you are in the planning phases of a Bedford new construction development, you need a clear decision framework that guarantees optimal airflow and seamless aesthetics. Contact our team at Presidential Ventilation today to schedule a consultation and finalize your HVAC blueprints with confidence.

Addressing the 100-Amp Amperage Barrier for Modern Heating

You want to upgrade your home's heating system before the harsh winter heating season hits, but a major roadblock stands in the way: your electrical panel. Your current system simply lacks the capacity to power modern, high-efficiency equipment. When planning this transition, understanding the real cost variables of upgrading a 100-amp panel for a new heat pump is the crucial first step to getting your home ready.

Older homes were built during an era when daily electrical demands were significantly lower. Today, attempting to add high-draw HVAC equipment to an aging 100-amp service creates a physical and electrical bottleneck. The panel often lacks the physical space for new double-pole breakers, and the main service simply cannot safely supply the required amperage. Instead of searching for unpredictable flat rates, homeowners must look closely at the physical, site-specific variables that dictate the true scope of the electrical work required for their unique property.

Fortunately, overcoming this amperage barrier is a highly manageable process when you understand what goes into it. Whether you are exploring different heat pump systems or looking into flexible heat pump financing options, knowing the specific structural and electrical factors at play ensures you can plan your upgrade without unexpected surprises.

Why Cold-Climate Heat Pumps Overwhelm Standard 100-Amp Panels

A standard 100-amp electrical service is often already operating near its maximum safe capacity just running your daily household necessities. When you factor in an electric range, a clothes dryer, a hot water heater, and general lighting, there is very little headroom left. Adding a modern heating system to this delicate balance requires a thorough evaluation of your home's energy consumption.

The Draw of Auxiliary Heating Elements

In regions like Mount Uniacke NS, the climate demands heavy reliance on high-capacity cold-climate models. These systems are incredibly efficient, but they operate differently than standard air conditioners. During severe cold snaps, the system relies on auxiliary or backup electric resistance heating elements to maintain indoor comfort.

The sudden spike: When these backup heaters engage, they draw a massive amount of amperage. A cold-climate heat pump often requires a dedicated 30- to 50-amp circuit. If your panel only has 100 amps of total capacity, dedicating half of it to a single appliance leaves the rest of your home severely underpowered, leading to tripped breakers and potential safety hazards.

Household Appliance Load Calculations

Before any new heating equipment can be installed, the Canadian Electrical Code requires a professional load calculation. This calculation is not a simple guess; it is a strict mathematical formula that determines whether your existing service can handle the new demand.

• Electric Range / Oven — Typical Amperage Draw: 40 - 50 Amps — Impact on a 100-Amp Panel: Consumes nearly half the available capacity when in full use.

• Electric Clothes Dryer — Typical Amperage Draw: 30 Amps — Impact on a 100-Amp Panel: Creates a heavy concurrent load during daily chores.

• Electric Water Heater — Typical Amperage Draw: 30 Amps — Impact on a 100-Amp Panel: Cycles on and off, creating unpredictable baseline spikes.

• Cold-Climate Heat Pump — Typical Amperage Draw: 30 - 50 Amps — Impact on a 100-Amp Panel: Pushes a fully loaded 100-amp panel immediately over its safe limit.

Balancing these demands means strictly adhering to load limits. A professional load calculation evaluates continuous versus non-continuous loads to ensure your home remains safe and compliant, which is exactly why a service upgrade becomes a non-negotiable requirement for older properties.

Evaluating the Service Mast and Exterior Connection Variables

The complexity of an electrical upgrade extends far beyond the metal box in your basement. For homes with overhead electrical services, the exterior connection points dictate a massive portion of the project's scope. The service mast—the metal pipe extending above your roofline—and the weatherhead must be robust enough to support modern infrastructure.

Overhead Wire Limitations

Upgrading from 100 amps to 200 amps requires physically thicker, heavier wire to carry the increased electrical current from the utility pole to your home. The existing wires running to your house are sized specifically for 100 amps. Upgrading means coordinating with the local utility company to disconnect the power, drop the old lines, and connect the new, heavier gauge wire. This process requires precise timing and specialized labor to minimize the time your home is without power during the winter heating season.

Weatherhead and Mast Degradation

Because a 200-amp service cable is significantly heavier, the structural integrity of your service mast is critical. Older masts often suffer from decades of environmental exposure.

• Rust and corrosion: Weakened metal cannot support the tension of heavier wires, especially during high winds or ice storms.

• Inadequate height: Nova Scotia Power guidelines mandate strict height requirements for overhead lines crossing yards or driveways. An older, shorter mast may need to be entirely rebuilt to meet current clearance codes.

• Physical damage: Bent or compromised masts require complete structural reinforcement or replacement before new wiring can be safely attached.

The physical condition of these exterior connection points directly impacts the labor and materials required, making it one of the most significant variables in the overall scope of your upgrade.

Panel Relocation and Clearances Under the Canadian Electrical Code

Safety regulations heavily influence the internal scope of an electrical upgrade. The Canadian Electrical Code (CEC) mandates specific working clearances around an electrical panel to ensure technicians and first responders can access the breakers safely in an emergency. Older 100-amp panels were frequently installed in locations that no longer meet these modern safety standards.

Working Space Requirements

The code generally requires a clear working space of at least one meter in front of the panel, with proper headroom and side-to-side clearance. In many older homes in Mount Uniacke NS, original panels were tucked into tight closets, low-clearance crawlspaces, or directly above laundry sinks. If your current panel violates these modern spacing tests, the new 200-amp panel cannot legally be installed in the same spot. It must be physically relocated to a compliant wall, which significantly alters the labor variables of the project.

Extending Branch Circuits

When a main panel is relocated to achieve code compliance, every single electrical circuit in your home must be re-routed to reach the new location.

The meticulous labor involved: This process often involves installing large junction boxes where the old panel used to sit, and then carefully running new wire extensions to the compliant location. Re-routing household wiring requires meticulous labor, specialized materials, and precise labeling to ensure every light, outlet, and appliance functions perfectly once the power is restored.

Trenching and Underground Lateral Complexity

For properties that receive their power underground rather than from an overhead pole, the variables shift dramatically. An underground lateral upgrade presents distinct physical challenges that require careful planning and specialized equipment.

Soil and Rock Obstacles

Upgrading an underground service requires laying new, thicker conduit and wiring from the street to the meter base on your house. This almost always requires trenching. The local terrain conditions in Mount Uniacke NS dictate the speed and method of this excavation.

• Bedrock and dense clay: Hard, rocky soil drastically increases excavation labor and requires heavy machinery.

• Paved surfaces: Trenching under or through existing asphalt driveways or concrete walkways requires specialized cutting and subsequent restoration.

• Landscaping: Mature trees, retaining walls, and custom landscaping act as physical site barriers that must be carefully navigated or temporarily removed.

Distance from the Utility Pole

The length of the run from the utility connection point to your home heavily affects material requirements. A home sitting close to the road requires significantly less heavy-gauge copper or aluminum wire than a home set hundreds of feet back on a rural lot. Furthermore, public utility locates must be coordinated before any digging begins to ensure the trench path safely avoids existing water, sewer, or telecommunication lines.

The Value of Coordinating HVAC and Electrical Installation

One of the most common pitfalls homeowners face is treating the heat pump installation and the electrical upgrade as two entirely separate projects managed by different, uncoordinated contractors. This fragmented approach often leads to severe scheduling conflicts, miscommunication regarding equipment specifications, and extended periods without adequate heating.

Avoiding Project Delays

Simultaneous coordination prevents project delays. When the same team oversees both aspects, there is no downtime between electrical readiness and HVAC commissioning. The electrical system is sized perfectly for the specific heating unit being installed. During a summer installation replacing an old forced-air oil burner, one homeowner encountered unexpected issues with their electrical panel upgrade. By having a coordinated team on-site, the technician quickly resolved the electrical concerns, ensuring the central heat pump system was installed seamlessly and functioned perfectly.

Seamless Safety Inspections

Working with a company like Presidential Ventilation means you benefit from seamless coordination for both HVAC installations and electrical requirements. This unified approach guarantees the entire system meets the Canadian Electrical Code without multi-contractor delays. Municipal and utility inspections are coordinated efficiently, ensuring your home is heated efficiently and safely during the winter heating season. This expert oversight resolves unforeseen electrical concerns smoothly, allowing you to enjoy your new ductless heat pumps without administrative headaches.

Tying Electrical Upgrade Compliance to Provincial Rebates

Investing in a comprehensive electrical upgrade is not just about safety; it is often the mandatory gateway to unlocking substantial provincial HVAC incentives. Programs designed to encourage energy efficiency require strict adherence to all local building and electrical codes.

Efficiency Nova Scotia Requirements

Efficiency Nova Scotia and similar rebate programs mandate the use of approved, certified contractors for all qualifying installations. If a homeowner attempts DIY electrical work or hires a non-certified individual, they can instantly disqualify themselves from receiving any heat pump rebates.

The proof of compliance: To secure these incentives, you must provide documentation and certification from licensed professionals proving the electrical capacity supports the high-efficiency equipment. While evaluating the breaker panel upgrade cost variables in Mount Uniacke NS, it is vital to remember that a code-compliant installation is an investment that is heavily offset by these targeted incentives and long-term energy savings.

Managing the Physical Scope of Your Service Upgrade

Ultimately, the variables of an electrical upgrade are entirely dependent on your home's unique physical layout and existing infrastructure. There is no universal template, which is why blind estimates often fall short of reality.

Professional Site Assessments

A professional site assessment is critical for mapping out the exact variables for your specific property. During this evaluation, an expert will physically inspect the service mast, perform a detailed load calculation, and measure panel clearances to determine exactly what the Canadian Electrical Code requires for your home.

This thorough approach is especially vital during broader home improvements. During a major summer renovation on a large house, one homeowner needed to replace all their old ducting alongside a new system. By mapping out the electrical requirements early, the team replaced the ductwork and installed a top-of-the-line heat pump efficiently, resulting in an excellent installation. While the structural and electrical variables can seem complex, the process is highly manageable with the right professional guidance. Taking the time to schedule an electrical assessment ensures your home is fully prepared for the winter heating season.

Preparing Your Home's Electrical System for Reliable Comfort

Understanding the real cost variables of upgrading a 100-amp panel for a new heat pump is the first and most important step toward achieving a safe, code-compliant installation. The complexity of the project hinges on physical realities—from the condition of your exterior service mast to the location of your current panel and the specific amperage draw of your new heating system.

You do not have to navigate these structural, electrical, and rebate-related complexities alone. The right professional team will evaluate your property in Mount Uniacke NS, map out a clear path forward, and ensure every detail meets strict safety standards. Explore your options today and take the next confident step toward a warmer, more efficient, and fully modernized home.

Frequently Asked Questions

Can a 100-amp panel run a heat pump?
In most cases, a standard 100-amp panel cannot safely run a modern cold-climate heat pump alongside daily household appliances. These heating systems require dedicated 30- to 50-amp circuits, which easily overload a 100-amp service when combined with electric stoves, dryers, and water heaters. A professional load calculation is required to determine your exact capacity.

What physical factors complicate an electrical panel upgrade?
The complexity is driven by site-specific physical barriers. Degraded exterior service masts, the need to relocate the panel to meet modern clearance codes, and trenching through rocky soil or paved driveways all add labor and material requirements to the project.

Do I need to upgrade my electrical service for a heat pump?
If your home currently has a 100-amp service, an upgrade to 200 amps is almost always necessary to meet the Canadian Electrical Code safely. Adding a high-draw heating system without upgrading can lead to tripped breakers, overloaded circuits, and severe fire hazards.

How does panel location affect upgrade complexity?
Modern safety codes require at least one meter of clear working space around an electrical panel. If your current panel is located in a tight closet or low-clearance basement, the new panel must be relocated, which requires meticulously extending and re-routing every existing electrical circuit in your home.

Are electrical upgrades eligible for heat pump rebates?
While the electrical upgrade itself may not have a standalone rebate, a code-compliant electrical system is a strict prerequisite for unlocking provincial heat pump incentives. Non-certified or DIY electrical work will instantly disqualify your new heating system from programs like Efficiency Nova Scotia.

What is the difference between an overhead and underground service upgrade?
An overhead upgrade involves replacing the exterior service mast, weatherhead, and aerial utility wires. An underground lateral upgrade requires excavating a trench from the utility connection to the house to lay thicker conduit, which introduces variables like rocky soil, landscaping removal, and utility locates.