Long time to heat

[Remedy234]

I’ve a duratech 19kw heat pump. In the Uk at this time of year it’s around 10-13 degrees. I’ve had the pump running continuously for over a week now but can’t the temperature over 24 degrees. Is this unusual ?

[Denniswiseman]

Is the pool covered, does it have a thermal cover, what is the size of your pool as it should be sized to your requirements
My heat pump struggles when it's freezing but copes very well most of the year

[Remedy234]

No it’s not covered due to being an odd shape. It’s approx 7m x 3.5m

[Denniswiseman]

I suspect you are losing most of your heat from the pool, at the very least you should have a thermal cover for heat retention
I invested in a retractable Pool cover https://www.telescopicpoolenclosures.com/pool-enclosures/rolal which with my heat pump gives me all year round swimming