Aqua Hot: 110 or diesel to keep bays above freezing

[Newseason]

A bit of a newbie when it comes to winter & Aqua Hot! We came back from SWFL about a week too early & the lows are going to be around 20 here in Indy.

I don’t want to winterize the Monaco Dynasty again & wondered if the Aqua Hot on 110 will keep the bays above freezing - or - do we need to run the Aqua Hot on diesel? I figured I’d set the furnace thermostats to about 50.

Thanks for sharing your insights!

[n2zon]

Diesel to be safe, depending on the expected lows where you are.

[Newseason]

@n2zon we're located NE of Indianapolis. Thabks for the feedback!

[n2zon]

I missed the temperature in your initial post (sorry). I'd use diesel since the predicted highs won't be much above freezing and the predicted lows are in the low 20's.

[KenZ71]

My guideline is if below 30 the diesel burner is turned on.

Any harm having both Diesel & Electric on? Is it smart enough to use electric 1st then pull in Diesel if it needs the "extra oomph"?