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Water Heating Time Calculator
Posted: Fri Nov 22, 2019 9:24 am
by gtcfoadm
RE: Water Heating Time Calculator
Posted: Wed Jul 15, 2020 5:17 am
by Marcel
the constant for the heat capacity of water is 4186.8, not 4168.
RE: Water Heating Time Calculator
Posted: Thu Sep 03, 2020 11:42 am
by Mike
A continuous flow calculator for instant water heaters would be useful, e.g. DHW gas boilers, electric showers, so that temperature rise for a given flow rate could be calculated, or input power needed to achieve a target Δ° at a particular flow rate, etc.
RE: Invisible Earplugs: How to Totally Hide Foam Ear Plugs
Posted: Tue Jan 05, 2021 10:46 am
by Jawad
Thanks for the calculator! very helpful
RE: Water Heating Time Calculator
Posted: Wed Apr 21, 2021 11:55 pm
by Bryce
Great estimator tool. It obviously varies on ambient, pool thermal insulation, covering, etc.
GREAT TOOL.
thanks.
Re: RE: Water Heating Time Calculator
Posted: Tue Jun 22, 2021 6:29 pm
by gtcfoadm
Marcel wrote:
the constant for the heat capacity of water is 4186.8, not 4168.
Hi Marcel
Thank you for your comment.
The tool uses 4186, but it was misspelled in the text. It's fixed now.
But you will find other values as well in the Internet. This "constant" is different at different temperatures. So, it is not really a constant. It is only a constant if you can live with some inaccuracy. I had a look at some tables and I have seen values of 4213 (1°C, 34°F) then going down to 4178 (35°C, 95°F) and up again to 4210 (95°C, 203°F). For most practical purposes, the tool should be accurate enough.