Boilers

**Eric Smith** · 01-31-2013, 08:26 AM

Hey guys. I do not see a lot of hot water heating here. However, everytime I do I get a little intimidated. I am wondering where I can get further info and/or training on them. Or steps any of you take to inspect them. Thanks.

Similar Threads:

**Mike Lamb** · 01-31-2013, 08:47 AM

InspectAPedia has a lot of info.

Hot Water Heating Boilers, How to Inspect, Diagnose, & Repair Residential Heating Boilers - Hydronic Heating Guide

**Markus Keller** · 01-31-2013, 02:15 PM

Obviously lots of info you can find and read at various websites. As starting points:
- Look at unit before firing if it isn't already running; this is to make sure it looks like it is functional and relatively safe instead of just turning it on and going Oh, __it!
- once running check and document running temp and water pressure
- check for auto flow valve and check valve
- check for auto damper and operation if present, check flue pipe pitch and condition
- when the unit is OFF look under the boiler to see how heavy the rust flakes are on the floor under the unit
- check for any signs of dripping under the unit
- check the burner tubes to see if they have been cleaned
- check for drips or leaks along pipe runs
- look for expansion tank
- as you walk around the house feel the bottoms and tops of radiators for significant temp differences
- check around radiators bleeders and valves for leaks
There's lots more but that's it for now. This should get you going.

**Garry Sorrells** · 01-31-2013, 02:37 PM

Add to Markus list:
- if oil fired burner, operation and function
---look for oil leaks
---flame appearance: to lean or to rich burn

**Bill Hetner** · 02-01-2013, 05:32 AM

do NOT test or try the prv to see if it releases. this is something if you open it might not reseal and you will be liable for replacement.(pressure relief valve)