A rule of thumb for determining how much chimney you need for proper woodstove performance is…
Pellets, like conventional wood, differ in variety and some wood species perform better than others. It has been our experience that burning premium grade pellets, like fir, provide for more heat, less ash and less sooting due to moisture content. Though they tend to be more expensive they will most likely save you money in the long run as you will require less fuel and maintenance
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Some manufacturers insist a roof over your heat pump is not necessary. However, in some cases where the unit may not be running consistently, snow can accumulate inside the unit and cause issues on startup. If you prefer not to install a shelter, you should ensure all snow is cleaned off the heat pump on a regular basis
Air source heat pumps are dependant on outside air temperature and become less efficient as the temperature drops. We recommend -10C as a set point where the heat pump should default to a backup heat source
