Heat storage / Guides

Efficient home design

Phase change building materials - natural heat storage in buildings

...heat in the icebox as it melted, keeping food cold. Using that example on a larger scale, you could in theory cool your house by having a large chunk of ice in it that absorbed heat from the air; but that wouldn't reduce energy consumption because you would need supplemental energy to cool it again in order to repeat...

Solar Electricity Generation & Storage with no Batteries, Azelio
Renewable energy

Azelio Solar solutions combine electricity generation & storage without Batteries

...storage in big and costly batteries. Instead, Azelio uses photovoltaic (PV) solar energy and converts it into heat in a thermal battery (or TES – Thermal Energy Storage), then they use a Stirling engine (200 year-old technology to convert heat into power) to generate electricity on demand. Solar power generation is...


Case Study: Kenogami House, Saguenay, Quebec

...heat gain and the heat normally generated though human occupancy. This will be the first winter for the Kenogami House, and its performance will be closely monitored. Should it be necessary to take measures to avoid overheating during mild periods, Alain is considering an air-to-water heat pump to extract heat from t...

What is a heat pump
Heat pumps, geothermal and AC

Heat pumps: what they are and how they work

...heater, which has a COP of 1 (every unit of energy you put into your electric baseboard comes out as heat), heat pumps suddenly become quite attractive! Another interesting advantage of heat pumps compared to other residential heating or cooling systems is that a heat pump can actually be configured to do both heatin...

Hydronic heating system
Delivery: radiant, forced-air and decentralized

Hydronic heating

...Heating the liquid in a hydronic system can be achieved in many ways: Tankless (on demand) water heaters Combination hot water tank and boiler Combination solar water heater and boiler Geothermal heat pumps Hydronic radiators and baseboard heaters will transfer heat in the same way as electric resistant h...

Thermal batteries for passive solar design
Efficient home design

Thermal batteries: how to passively store heat

...heated coils from a solar collector. Through that same tank runs another coil that is extracting the heat to pump it through your radiant floor or whatever other heating distribution system you have. Specific Heat Capacity: If you take solid paraffin (heat capacity Cp = 2.5 kJ/kg·K and heat of fusion of 210 kJ/kg),...

Exterior compresssor heat pump water heater
Plumbing and water heaters

Heat pump water heater with exterior compressor

...heating system, and this is why it is so crucial to be equipped with a very efficient heating system when making your domestic hot water with a heat pump that draws heat from inside the home. To explain that further - if you heat your home with an oil furnace, a heat pump water heater that transfers heat from the amb...

Solar Air Heating Panels for Homes - How to Build DIY
Solar thermal collectors

All about solar air heaters - DIY or purchased

...heaters is that you only get heat when the sun is shining. Short winter days and unpredictable cloud coverage make it difficult to rely on solar air heaters as a primary heat source because you will gain all your heat during sunny hours but then have to go an easy 16 hours at times with no heat input. And shorter day...

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

...heat pumps in this house, an air-to-air heat pump that extracts heat from outside air to heat inside air, and an air-to-water heat pump. The air to water heat pump extracts heat from ambient air inside the home and transfers it to the hot water tank, offering efficient air conditioning in summer. As for heat storage,...

The passive solar home in Lac Kenogami, Quebec
Passive solar home design

Ecohome design wins House of the Year Award from Green Builder® Magazine

...heating strategy involves an air-to-water heat pump powered by photovoltaic solar panels that extracts heat from the interior air and transfers it to his water heater, from where it is distributed through his radiant floors. Along with providing air conditioning in summer, this system prevents the home from overheating...

Gas powered tankless water heaters
Plumbing and water heaters

Are tankless water heaters good?

...storage tank that comes with traditional water heaters. This type of water heating system can be advantageous in some climates, provided they use gas-fired as opposed to electrical heating. These heaters may also be known as ' inline water heaters', 'continuous flow heaters', 'instantaneous waters' or 'flash heaters'...