Posted: February 2, 2026

How to Improve Energy Efficiency in Your Home’s Heating System

WFC helps you keep comfortable while controlling your energy costs

Winter in Maine is beautiful, but it can be relentless. As temperatures drop, your heating system works overtime, and for many homeowners in Hallowell and Central Maine, that means watching energy bills climb higher and higher.

Improving your home’s energy efficiency isn’t just about saving money, it’s about keeping your family comfortable and ensuring your home is running as smartly as possible.
Whether you’re looking for quick weekend DIY projects or considering a major system upgrade, there are plenty of ways to boost your winter warmth without breaking the bank. Let’s explore actionable steps you can take to make your home more efficient this season.

Start with a home energy audit

Before you invest in upgrades, it helps to know exactly where you are losing heat. A professional home energy audit can pinpoint air leaks, insulation gaps, and inefficient equipment.
In Maine, you have excellent resources available. Efficiency Maine offers access to registered energy advisors who can conduct comprehensive audits. These assessments often open the door to rebates and financing for energy upgrades, giving you a clear roadmap for improvements.

Upgrade your insulation

Insulation acts as a barrier to heat flow and is essential for keeping your home warm in winter. If your home was built decades ago, your insulation might not meet current standards.
There are several types of insulation to consider depending on your home’s needs:

• Fiberglass: Common in unfinished walls, floors, and ceilings. It comes in batts or rolls.
• Cellulose: Made from recycled paper products, this loose-fill insulation is great for blowing into attics or wall cavities.
• Spray goam: This expands to fill gaps and cracks, offering both insulation and air sealing. It’s highly effective but typically requires professional installation.
• Rigid goam: Often used on basement walls or exterior sheathing for high insulating value in thin spaces.

DIY efficiency improvements

You don’t always need a contractor to make a difference. Here are a few reliable DIY tasks that can prevent heat loss:

• Seal windows and doors: Drafty windows and doors are a major culprit for heat loss, accounting for up to 35% of any heat loss in your home. Apply weatherstripping around movable parts of windows and doors, and use caulk to seal stationary cracks.
• Install a programmable or smart thermostat: These devices allow you to lower the heat automatically when you are asleep or away at work, potentially saving you about 10% a year on heating and cooling.
• Use window treatments: Heavy curtains or cellular shades can provide an extra layer of insulation over your windows at night. These are a big help if you have single-pane windows. Open the curtains and shades during the day to let the sun naturally warm your home.
• Change air filters: If you have a forced-air system, a clogged filter restricts airflow and forces your furnace to work harder. Changing it every 1-3 months keeps the system running smoothly.

Routine heating system maintenance is essential

Your heating system is like a car. It needs regular tune-ups to run efficiently. Neglecting maintenance ensures your system’s efficiency will degrade over time.
Annual service visits include cleaning crucial components, checking controls, and ensuring safe operation. At WFC, our Local Advantage® service plans are designed to keep your system running at peak performance. Regular maintenance not only improves efficiency but also extends the life of your equipment and reduces the risk of mid-winter breakdowns.

How to know when it’s time to upgrade

Sometimes, repairs and insulation aren’t enough. If your boiler or furnace is over 15 years old, becoming less efficient, or repairs cost more than half the cost of a new one, it might be time to replace it with a high-efficiency model. Modern systems are significantly more efficient than their predecessors, meaning you get more heat for every dollar spent on fuel.
WFC provides exceptional heating products tailored to any home layout or age:

• High-performance boiler systems: Ideal for homes with radiators or baseboard heat.
• Energy-efficient furnace systems: Perfect for homes with ductwork.
• Space and garage heaters: Great solutions for those hard-to-heat additions or workspaces.

Rebates are often available for these upgrades. Efficiency Maine frequently offers incentives for installing high efficiency heating systems, making the upfront investment much more manageable.

Improving your home’s heating efficiency is a smart investment that pays dividends in comfort and savings. Whether you are sealing drafts this weekend or planning a full system replacement, every step counts.

If you are unsure where to start or ready to upgrade your heating system, our team is here to help. Contact WFC today to discuss your options and ensure your home stays warm all winter long