In order to ensure comfort and get the most from the various systems of our house air needs to move around. Our air source heat pump and our heat pump water heater work together in boosting the efficiency, and the ceiling fan is a big part of making that happen. This video explains the relationship between those systems. Thanks to our sponsor Aeratron for providing super efficient and quiet ceiling fans that fit in nicely with the look of this LEED v4 Platinum certified house.
The radiant floor is heated with an electric boiler, it is a separate system than the heat pump. The intention of the heated floor is primary to ensure comfort and happy feet, the air-source heat pump is far more efficient and so we rely primarily on that to heat the air of the home.
The domestic hot water is a heat pump as well, we used an AO Smith air-to-water hybrid heat pump. The water heater sucks in the air from the home (which with the heat pump is generated more efficiently and affordably than by the floor) and so it in turn transfers that ‘efficiency’ to the water heater.
An even greater benefit is in the summer months as the water heater in effect acts to cool the air in the house, so much so that most summers the air-source heat pump is actually never operated for cooling.
A greater explanation can be found on the following pages
- LEED Platinum Edelweiss House heating strategy
- Air-source and water-source heat pumps working in tandem