Heat loss through windows / Guides

Thermal image showing where home heat loss is occurring.
Insulation and soundproofing

How insulation works

...heat transfer, helping keep homes warmer in winter and cooler in summer. How well-insulated your home is will determine how comfortable it is and how much you will spend on energy for heating and cooling, and in some respects, how durable it will be. The transfer of heat (or heat loss) occurs in 3 ways: conduction , ...

Balanced insulation levels in a green home
Efficient home design

Insulation in Green Home Building, a balanced approach to putting it where it does the most good

...heat loss, so plan your air barrier well in the design phase and be very meticulous with air sealing when working onsite. High-quality windows on the south can gain more heat in the day than they lose at night, giving you a net heat-gain. Windows on all other sides always result in a net heat-loss, so keep that in mi...

Wood frame Triple-glazed, argon-filled windows in the Ecohome Demo House
Windows and doors

Choosing windows - which window frame? wood v aluminum v vinyl

...heat loss on northern facing windows, but high quality southern facing windows can actually offer a net gain through passive solar heat collection. Passive solar heat that is absorbed during the day can outweigh the heat lost at night. So don't be afraid to put lots of windows facing south, as long as they are good q...

How to choose Triple pane, high performance windows
Windows and doors

Our top tips for buying high-performance windows

...windows which further determines how much heat comes in and how much goes out. Low E coatings on windows will reduce heat loss by reflecting infrared heat back into your home in winter while also reflecting heat back out in summer. On the down side, they can also reduce heat gain when you want it, during the heating se...

Correctly installed Triple pane south facing windows on Ecohome's Demo House
Windows and doors

Installing doors & windows for the best performance in high efficiency homes, LEED & Passive House

...heat flow is more dramatic. A thicker coloured line indicates a longer time taken for heat to move through it. Or in layman terms - in cold climates this translates to more heat in your house and more money in your pocket, or in warm climates, more unwanted heat outside and a lower load on the aircon unit, also savin...

When should you replace windows
Windows and doors

When should you replace old windows?

...Windows, Replace or Repair? We often get asked if it is a good idea to replace old windows with new and better performing windows to save money. Usually to the surprise and relief of homeowners we most often tell them to stick with the ones they've got. Not to say that the idea of replacing windows is always 'green w...

Electric Heaters - is heating with electric an eco-friendly option?
Heating with electricity

Heating with electricity

...heat with electricity. On top of the cost of the furnace and duct work (which can be quite expensive), operation requires not only generating heat, but energy is also required to distribute that heat throughout your home. Heat loss can occur through ducts in spaces that you don't intend to heat, further reducing overal...

Top Tips for Getting a House Ready for Winter
Wall assemblies - renovation

Winter preparation for your home - are you ready for the cold?

...windows. Before getting all gung-ho about replacing windows, a seasonal solution can be covering them with a thin sheet of plastic; that will prevent heat loss, reduce air leaks, and as a bonus you'll be able to see outside. Poorly performing windows will also make a home feel drafty and cold when you're near them, s...

How radiant floors work
Delivery: radiant, forced-air and decentralized

How to design for thermal comfort in a home

...windows, humidity control and properly designed heating, cooling and ventilation equipment , to name a few. Thermal comfort = efficiency and durability: The less heat that is lost through the building enclosure, the warmer it will be, and less heat will be lost from your body to the walls and windows. As warm, ...

Off grid, passively heated and cooled house in the Gatineau Hills, Que
Off-grid and Net-Zero Housing

Off grid living blog, part 2: passively heated, this house in Quebec aims for LEED certification

...windows, face as many of them south as you can to gain heat, and install heavy duty insulation to keep that free heat. Further to that, the house is powered by solar panels, and heated by a woodstove and radiant floors warmed by a propane boiler. A double exterior wall system reduces heat loss to a fraction of what y...

$40k Interest-Free Loans for Green Home Renos, How to Apply Canada 2021
Grants and incentives

Greener Homes interest-free loan scheme 2021 Canada - the ultimate guide

...Heating homes with electricity can be clean and affordable regardless of high electricity rates if your house is well-sealed against heat loss and if you choose an efficient heating system like a heat pump . Heat pumps can be up to 3 times cheaper to operate compared to noisy baseboard heaters . Heat pumps work dif...