Winter Heat Calculator

When it comes to staying warm during the winter months (November to March), it’s helpful to look at the costs and eco-impact of different heating options. You might be considering appliances like natural gas heaters, electric heat pumps, oil furnaces, or even cozy wood or pellet stoves. Each option has its own fuel price tag and carbon footprint which can change based on energy rates, appliance efficiency, and external temperatures.

This calculator allows you to examine both the expenses and environmental effects of different heating appliances as a primary heat source, taking into account the thermal properties of your unique home and the typical temperatures experienced in the New England region.

Tell us about your House

What is the average internal temperature of your space during winter months?

Why are we asking this?

The difference between internal and external temperatures plays a large role in the amount of energy needed to heat your space to the desired temperature. The larger the difference, the more energy needed.

When was your house built or renovated with new insulation?

Why are we asking this?

We use this number to get a rough estimate on insulation and window R-Value. You can shift this number to a more recent year if you know when the last time your home’s insulation was reinstalled.

What is the square footage of your house? (Not including the basement)

Why are we asking this?

The square footage, ceiling height, and number of floors in your home help to cacluate the volume of air needed to be heated.

Square footage can be calculated by measuring the width and length of the space, then multiplying it. You can also find this number on most tax cards or real estate websites if your space has been for sale in the semi-recent past.

How many stories does your space have? (Not including the basement)

How do I answer this?

No need to include the basement – well get into that. (If the space you are heating is a basement apartment, answer 1 on this question, then “slab” on the basement question)

What is the average ceiling height (in feet) of your space?

Why are we asking this?

The height of your ceilings impacts the volume of air you need to heat to maintain your home's desired temperature.

Older homes typically have lower ceilings (7-8 feet). Trends for newer homes feature higher ceilings (8-9 feet). If you don't have a measuring tape on you, look for a door. Door heights are generally around 6 feet 8 inches tall.

What type of basement does your space have?

Why are we asking this?

Basements lose heat through the surrounding earth, and the size and depth determine how much heat escapes through your structure’s foundation.

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Include your email if you would like to receive additional info and suggestions on heating your home efficiently and other ways to lower your energy costs.