I would like to know if a boiler for heating water could work with
water provided by gravity. I have a 1000 liters water in a tank at 8-9
ft. If I install the boiler under the sink, will be the water by
gravity pressure (from the tank) enough for have it in use for the
I have a freind who can in an emergency , heat his house using his hot
water heater by gravity. It is tied into the same piping as his boiler
is. If he looses power to his house...and thus the boiler, he turns
some valves to switch over the system to the hot water heater. It then
heats the water in his baseboards by gravity.
Would it work in your scenario ? Yes, but it would have to be properly
In many parts of the world, the UK for instance, "boiler" = "water heater"
and I think that this must be the case now -- otherwise it wouldn't make
much sense for him to question delivering the boiler's output to the sink.
Pretty close but just a bit high. My initial guess was that it would be
considerably more than your figure, probably based on memories of carrying
5-gallon buckets of water. These numbers will probably help:
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