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I have a need for a point-of-use style mini-tank (4-10 gallons) which runs on natural gas. I see a lot of electric mini-tanks of this kind but none that run on NG or even LP. Do they exist? I cannot find anything, anywhere.

I don't have the breaker box capacity for one of these electric mini-tanks nor the room for a full size 40-50 gallon tank so it has to be NG and small. Tankless is also not an option.

closed as off-topic by ThreePhaseEel, Tester101 Jul 10 '17 at 11:27

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    Can you stick a bigger (albeit not quite the size of a full tank heater) natural gas fired thing somewhere else and run some pipes to where you need this mini-tank to live? I ask because I've seen indirect coils in the size range you're after IIRC... – ThreePhaseEel Jul 6 '17 at 3:23
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    Or better yet, do you already have a hydronic or steam heat supply at hand? – ThreePhaseEel Jul 6 '17 at 3:31
  • Thanks. Yeah, right now it's running from very far away, I'm trying to reduce the delay. – Joe Bebel Jul 6 '17 at 3:49
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There's several models of point-of-use tankless (search under sink as well). I found this unit on Amazon. There's several others as well.

The problem with a tank that small is that keeping it at temperature eats a lot more energy. A larger tank can retain its heat better. This is why a tankless is preferred for point-of-use. You only heat what you need.

  • Thanks. I had hoped since small electric mini-tanks exist that NG would too. The problem I've had with the tankless is the delay (up to 1 minute) on some models and I'm trying to get instant delivery for very small (<0.5 gallon) loads. Unfortunately I can't find any that advertise their time-to-delivery specs, I would need one that really is "instant". – Joe Bebel Jul 6 '17 at 3:54
  • Actually, I would also like to put a mini-tank on the outlet of an existing tankless to handle the delay problem, which is an application the electric mini-tanks are marketed for (but again, I would need natural gas) – Joe Bebel Jul 6 '17 at 3:58
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    Closest thing I can find to that is this 6 gallon LP tank – Machavity Jul 6 '17 at 13:24

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