Vacationing: water make-up for boiler

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Old 11-06-20, 07:54 AM
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Vacationing: water make-up for boiler

What are your opinions on turning off the main water supply when gone for extended periods of time? We leave for about 5 months to escape the winter weather and I'm uncertain about any issues related to the water make-up valve not being able to function due to the water supply being off.

Thanks, Dave
 
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Old 11-06-20, 11:31 AM
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For five months.... I'd shut the water off.

Do you have someone watching his residence ?
I'd make sure the boiler water level sensor is serviced and working.
If it doesn't have one..... have one added.
This is a perfect application for a smart thermostat that could notify you on an unexpected heat drop.
 
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Old 11-06-20, 03:59 PM
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I do have a wifi thermostat. Actually three of them. So, if the boiler needs make-up water and it is not available the boiler won't fire up??

Thanks
 
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Old 11-06-20, 04:11 PM
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Some boilers don't have the low water level safety switch.
 
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Old 11-07-20, 07:43 PM
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If water level falls in hydronic boiler it may become a steam boiler and bad things can happen.

That is why water feed valve should be left open when burner can fire.

Steam is not produced in boilers that are empty or filled with water (except if temp exceeds 212 F).
 
 

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