These handy thermostats work with any AC unit, mini-split, or in-wall heat pump that uses an infrared ... and the ability to control it from the Amazon Alexa and Google Home apps and their respective ...

[Gonzho] has been busy the last few years working on his own Arduino Powered Open Source heat pump controller, and the project logs show some nice details of what it takes to start experimenting ...

Heat Pumps are an extremely efficient way to maintain climate control in a building. Unlike traditional air conditioners, heat pumps can also effectively work in reverse to warm a home in winter ...

The first control strategy prioritizes the use of heat pumps, while the second prioritizes price. Total costs were reduced by up to 25% with the second option. A research group led by scientists ...

The manufacturer has expanded its Ecodan R290 heat pump series with three new products. The systems use propane (R290) as the refrigerant and can purportedly deliver flow temperatures of up to 75 C.