Is $9,125 Too Much for a Tankless Water Heater Installation?

10 May 2025 3 answers
Asked by CoolCat123!
Hey everyone! I recently got a quote for converting my gas water heater to a tankless system, and I'm in shock at the price. They quoted me $9,125.41 for a Rinnai 11gpm tankless heater plus a recirculating pump and some electrical work. I live in a house with a big crawl space, and the company said my current heater can't be repaired because it's leaking. I've read that replacement was probably my best option, but I can't find anywhere that lists prices this high. Is this normal?

Answers

AskAPlumber
Those costs could be due to needing to upgrade the gas line and ventilation, which can definitely rack up the bill. But it's worth asking around for a second opinion on whether that price is justified.
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DIYDude89
Wow, that's insane! I replaced my regular tank for about $400. You might want to consider the return on investment here. Remember, tankless heaters can also break down over time, so keep that in mind.
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HomeFixerX
If you're not planning on staying in your home long, it might not make sense financially. My wife and I opted against a big system change for that reason, and we found better options at lower prices.
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