Talk:Tankless water heating

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10/2016 Some information about history of tankless water heating will be valuable and information about adoption in different countries. — Preceding unsigned comment added by 112.135.16.92 (talk) 15:38, 16 October 2016 (UTC)[reply]

Single phase or three phase?[edit]

The header image says it's a single-phase electric heater, but the image's page says it's three-phase.

Unrelated, 18 kW is a ton of power. Would that even run on normal USA electricity? Outlets usually stop around 1700 W. — Preceding unsigned comment added by 136.176.168.202 (talk) 16:54, 18 October 2017 (UTC)[reply]

"Combies" listed at Redirects for discussion[edit]

An editor has asked for a discussion to address the redirect Combies. Please participate in the redirect discussion if you wish to do so. _signed,Rosguill ^talk 20:11, 1 September 2019 (UTC)[reply]

Missing/Ill-defined Categories[edit]

Combi boilers seem to be poorly defined here, seemingly as anything that provides both DHW and space heating. However, tankless coils (secondary heat exchangers in conventional boilers or furnaces) definitely exist. They seem to fit the broad definition of combi given, and yet are a rather different beast... --76.24.24.247 (talk) 04:47, 6 December 2021 (UTC)[reply]

"Tankless heaters use either gas or electricity for heat"[edit]

Article lists the above under disadvantages. But it's not true - for example the manufacturer [1] Danfoss describes their water heaters as such:

The cold water is heated in the heat exchanger via district heating water or another waterborne heat source. As a result, the water heaters deliver a constant supply of instant hot water. 212.10.86.161 (talk) 16:41, 29 March 2023 (UTC)[reply]