Heating / Guides

Off-grid leed home
Off-grid and Net-Zero Housing

Off-grid living blog post 5: appliances, mechanical and other systems

...heating We use propane to do our domestic hot water heating, with an indirect water heater powered by our propane boiler (see post about our heating system here ). Our boiler has a set of heating loops that come off of it, and one of those loops goes inside the water tank. A heat exchanger consisting of a set of copp...

Off-grid home with solar PV & Battery backup
Off-grid and Net-Zero Housing

Thinking about renewable home energy and a battery backup?

...heating by that same amount and suddenly heating a house with an active solar panel system becomes more realistic. Even more so if you design for passive heating as well, which can potentially cut demand in half on its own. It is our humble opinion that financial resources are often squandered in home construction wh...

The Zoetrope DIY Vertical Wind Turbine Design
Wind power

The Zoetrope: Open Source DIY Vertical Wind Turbine Design

...heating. Applied Sciences then decided to make the design widely available to others along with an introduction to wind power, hoping that others might improve the design and functionality. Hence the beauty of open source design. The freely downloadable construction guide includes a list of necessary materials, recom...

Resilient home construction - Kenogami House of the Year
Efficient home design

"The Most Resilient House in North America"

...heating degree days per year (Fahrenheit degree-days, base 65°F); there isn’t all that much sunlight in the winter, and Quebec—let alone northern Quebec—isn’t the first place that comes to mind with cutting-edge building design. But in Saguenay, located 130 miles north of Quebec City, Alain Hamel has created what jus...

Prefab frost-protected shallow foundation insulated form kit
Slab on Grade

Raft slabs - How to build Insulated Frost Protected shallow foundations (FPSF) on problem soils

...heating, be sure to have it designed by engineer to properly locate the heating delivery system so as not to affect the structural integrity of the slab. Raft slab Installation First the formed edge pieces are laid in place, the corners need to be squared and secured in their location. following that is the insta...

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

How to design for thermal comfort in a home

...Heating , "The sensible heat transfer that you have between the body and space is predominantly a radiant transfer, it's not air-based. The ASHRAE handbooks, medical journals and the journals on indoor environmental ergonomics are very clear on that, that roughly 60% of the transfer of heat between the human body and t...

Insulating a Slab on grade for a Passive Solar LEED Home with Rockwool © Ecohome
Insulation and soundproofing

Insulating below slab-on-grade floors

...heating bills or chilly feet. In this case we have gone with 8 inches of insulation for a total of approximately R32. This will help keep the slab temperature more balanced with ambient interior temperatures, and greatly reduce the amount of heat you have to pump into your floor to stay warm. The payback period for...

Solar thermal collectors

Product of the month: Solar water heater with overheating protection

...heating, swimming pool heating, or in conjunction with hydronic radiant heaters or radiant floors. The percentage of your heating demand that a collector will provide in any situation depends on solar availability and consumption; meaning, how efficient your home is, how big your pool is or how much hot water you consu...

Thermal batteries for passive solar design
Efficient home design

Thermal batteries: how to passively store heat

...heating system was built In 1939 on the MIT campus (Massachusetts Institute of Technology), and sat on top of a huge water reservoir that was heated by thermal solar panels. MIT Solar House thermal battery via Wikimedia What are phase change thermal batteries? Taking advantage of a 'phase change' raises the b...

Solar panels power the Kenogami House in Saguenay, Quebec
Off-grid and Net-Zero Housing

The Kenogami House: Energy systems in Net Zero Energy Home Design

...heating in the slab foundation. Heating water with PV instead of thermal solar panels: It may seem counterintuitive at first, but there is strong case supporting the use of PV panels for heating water over thermal solar systems in Net Zero Energy homes , though recent innovations such as Viessman's Vitosol solar th...

Grey water and heat recovery shower
Bathrooms

EcoVéa: recycled and cleaned shower water

...heating. Consequently, the EcoVéa allows savings of up to 80% in energy consumption of a hot shower." With a concept this simple in theory that has such huge potential for conservation, it's hard to imagine why we haven't seen this type of technology sooner, and hard to imagine why we would build a shower any other w...