How to winter-proof your air-to-water heat pump

How to winter-proof your air-to-water heat pump


Winter can be beautiful, but the snow and below freezing temperatures can place additional demand on your air-to-water heat pump. Here are our 5 tips to winter-proof your heat pump.

1. Check the grilles, both front and rear, on the heat pump’s outdoor unit at regular intervals. Clean and make sure that there are no leaves or snow blocking the air supply. Be extra attentive after strong winds and heavy snowfall. 

2. Falling snow and ice may damage the heat pump’s outdoor unit, so also make sure to remove the snow and ice from the roof in proximity to the pump.  

3. Make sure there is no build-up of snow around the heat pump. If there is a lot of snow, you may have to clear the area around the pump a little more thoroughly.  

4. When the snow melts and the ice thaws, a lot of condensation water is produced – up to 50 litres per day. The easiest way to deal with water from the air-to-water heat pump’s outdoor unit is by means of a drainage tray leading to the surface water drain. (If it is not possible to install a tray or if there is no drain, the water can be diverted in another manner to ensure ice does not build up underneath the heat pump. If there is too much ice build-up, the pump may become damaged.) 

5. Last but not least, make sure the water is not diverted towards the house foundations, as this can cause moisture damage. Water can also freeze in a garden and create icy patches where there is a risk of slipping. 

Read more about air-to-water heat pumps 

CTC has two types of air-to-water heat pump: One type is variable-speed and automatically adjusts the operating mode based on the actual heating needs of the house, while the other type has a start/stop function. Read more here