heat-security / Green Building & Sustainable Home Renovation Information & Advice

As founder of the Resilient Design Institute, Alex Wilson is an internationally renowned authority on resilience in home design. Beyond just homes, 'resilience' can in a way describe a lifestyle, or perhaps a life philosophy. Sure, 'green' homes can help save the planet, but some of them may also save the individual. ...

Heat Pumps explained simply When it comes to residential heating and cooling systems, few types of heating systems are as energy efficient as heat pumps. But what exactly are heat pumps and how do they work? In short, a heat pump is simply an electrically powered device that is capable of transferring heat from one pla...

Geothermal vs. ASHPs - what's the difference? Heating and cooling systems play a crucial role in maintaining comfortable indoor temperatures in homes everywhere . With advancements in technology, homeowners have various options for energy-efficient heating and cooling systems. Two popular choices are geothermal heating...

How well does a mini split heat pump work in a LEED or Passive House certified home?  Really well as it happens, see a great example of a split system heat pump installation in the Edelweiss LEED Platinum V4 Home below: The Edelweiss House has a radiant floor to keep our feet comfortable but we rely on a Mitsubishi Mr....

Having a backup heat source that can operate without electricity should be an important consideration for many homeowners in colder climate zones, especially those who rely on a heat pump or electricity as their primary source of heat. In this guide, we will explore the various factors that can influence the need for a...

There are many manufacturers of heat pump water heaters on the market, which, rather than heating water with an electric coil as a normal electric hot water tank does, employ an evaporator to extract heat from the air (either interior or exterior) and use it to make hot water. The byproduct of an air-to-water heat pump...

Heat pump electric hot water heaters, good or bad idea? Water heaters are generally the biggest energy drain in a home after heating. so Air-to-water heat pump water heaters are potentially a big energy saver, particularly when the main heat source in a home is an air source heat pump, as the water heater can in effect...

Air Source Heat Pumps, and are Ground Source Heat Pumps "Geothermal?" Let's clear up some confusion on terminology regarding heat pumps - search Google for Geothermal Heating Systems and you will find hundreds maybe thousands of companies using the word "Geothermal" to describe ground source heat pumps, two systems tha...

Our previous update covered aspects of the building envelope, which allowed us to reduce the annual heating requirement to about the Passive House standard of 15 kWh per square meter. Windows are a part of that but they are also part of our energy performance strategy. The house is laid out south facing to maximize pas...

How do the best heat pumps work? A heat pump works very differently than other home heating systems, in that it doesn’t ‘generate’ heat the way a furnace, boiler, radiator, oven or even a toaster or hair dryer would; instead, it collects heat from one place and transfers it to another. Think of your refrigerator as an ...

Here is our DIY video of  how to lay down tubing for our radiant floor in the Edelweiss House. We have a 10 zone system, allowing floor temperatures in each room to be controlled independently. HePex tubing was provided by Uponor, who also use building plans to give customers a zone plan to follow making the install q...