How to use TWO heaters (gas & heatpump) for Pool/Spa?
Hi all – We have a heat pump for our pool, but we are in the midst of adding a spa with overflow into the pool. Because the heat pump won’t work below about 54 degrees F, we’re installing a gas heater to heat the spa when it’s colder outside. I’m looking for advice on how to plumb two heaters to do the following: – Use only the gas heater for the spa in the winter – Use only the heat pump in the summer, for both pool and spa (it has a spa mode) – My ultimate goal is to maximize the efficiency of heating either the pool or spa, while keeping the plumbing complexity low so the pumps do not have to push water through too many extra fittings. I don’t think I would need the option to run them simultaneously, but if you disagree, let me know. Some other considerations: I have a Pentair EasyTouch 4 system which is currently controlling an Intelliflo VF, a Polaris Pump, and the heatpump. For the spa, we are adding the gas heater, a pump for the spa jets, and a spa light. My pool guy thinks we
