The Calorex Pro-Pac "Y" Range of pool heat pumps are designed to operate down to -15c and so are suitable for all year round use
They are available in either single or 3-phase electrical supply.
Please click on either single phase, or 3-phase to see the relevant models:-
Calorex Y-Range (All-Year Use)
Calorex Pro-Pac 16 – 22kw Single Phase All Year Heat Pump£4,980.00 – £6,279.00 inc VAT