My fish room is around 2000 gallons on a common sump system. My water aging tank is 530 gallons which I use twice a week. My 40 gallon gas water heater needs to be drained 3 times to bring 400 gallons up to the proper temperature in the winter which takes about 2 hours. So I'm going to put in a tankless continuous system or a 75 gallon high input water heater to speed things up. I don't have room in my fish room for the aging tank but in San Diego the cost of my gas is only $20/month even in the winter. So the cost of heating the water is not a problem. The big cost is an extra $100 a month to keep the water warm in the fish room. What I was wondering is should I put in a circulating pump with a water to water heat exchanger (perhaps a spa type) in my sump and get rid of my 1500 watts of heaters? Gas would cost <25% as much as electricity. Has anyone here done this? Any experiences would be appreciated.
Anyone use a water to water heat exchanger in their fish room to maintain water temp?
- Thread starter Recumbent
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There are people that do that and it does pay off. However you should look into the tankless heater specs, if you are running them non stop like that I don't think they work as well. If you are doing a hot water loop may be better off with the current tank water heater.
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Here is an interesting read you may be interested in: http://www.nycichlids.net/viewtopic.php?f=3&t=16735
Is the fish room insulated enough to just heat the room? That's what I do and the water I age is the temperature as the tank water.
