we put a dr. heater electric space heater (dr968, original heater) in our cold room and set the temperature on the dr. heater space heater to the same temperature as the hallway heat pump thermostat temperature. on the economy setting, the dr. heater electric space heater will eventually raise the temperature in the cold room to the heat pump thermostat setting and keep it there. for example, if I set my heat pump temperature at 70 degrees, and it's 68 degrees or less in the room that I'm occupying, then with the dr. heater space heater in the economy mode, it will raise the temperature to 70 degrees in the room that I'm occupying while it is 68 degrees or less in the rest of the (unoccupied) house. problem solved.
the dr. heater electric space heater (dr968, original heater) is an excellent product at a very reasonable price.
dr. heater electric space heater (dr968, original heater) is sold online and in stores.
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