Boiler Water Consumption

Steve_211

I have 7 radiators, 3 on the ground floor and 4 on the 2nd floor (3 in the bedrooms and 1 in the bathroom) on a single pipe system. Off hand, how much water would be lost over 24 hours if only 1 air vent was defective?

ethicalpaul

Impossible to say. But what do you mean "defective"? Do you mean it's blowing steam all day or that it never opens?

How much water are you losing over 24 hours? Why hide that information from us?

Steve_211

I'm not hiding it. I opened up a topic September 2020, "Boiler Consuming Water". I didn't want to be redundant. After following the advice since that post, I replaced all the air vents and swapped out the Honeywell pressuretrol with a Honeywell vaporstat. Everything is fine now. I know make-up water has to be added from time to time. I do that manually and prefer it that way. I would just like to know what amount would require attention. As to being defective, if the vent was stuck open.

ethicalpaul

OK so this is a hypothetical, gotcha. And I wouldn't be worried about being redundant from Sept 2020

so it's still impossible to say, but it could be a quart to a gallon maybe, depending on how much the system was running that day, the pressure of the system, the size of the vent

If I see my level go down a gallon in a week I start looking for leaks. I prefer a gallon per month or less.

Steve_211

That much, huh, from one small port hole on one little vent. Thanks for the estimate, now I know what to look out for. I'm no where near that. Since my 2020 post, I replaced all the vents with Varivalves set around the halfway mark and the vaporstat set at 10 ounces with a 4 ounce differential. I add about a pint a week to a week and a half.

Jamie Hall

You're fine.