Go Back   InterNACHI Inspection Forum > >


Inspecting HVAC Systems Topics include heating, venting, and air conditioning inspections.

Thread Tools
Old 2/20/10, 3:33 PM
David C. Macy, CMI's Avatar
David C. Macy, CMI David C. Macy, CMI is offline
Certified Master Inspector
Join Date: Jan 2004
Location: Home Safe Home
Posts: 4,881
Default Old boiler system

Had a few questions pertaining to an old boiler.

My clients were very knowledgeable and understand about the asbestos coverings and that it was an old system. They planned on replacing in a year or two. They wanted to update the windows, add insulation and do some other updates first.

There boiler specialist stated that new boilers are not that much more efficient than this old one. This was a hot water boiler with circulator pump and radiator distribution, 2 level house.

So my first question is: Is that true??

Second question is on the venting system. I have never seen one like this,
Anyone care to educate me? The cast iron ball on the top seemed to act like a damper. The open pipe at the bottom of the vent seems to be for drafting.

Attached Thumbnails
Old boiler system-154710-045-jpg   Old boiler system-154710-060-jpg   Old boiler system-154710-053-jpg  

Last edited by dmacy; 2/20/10 at 3:37 PM..
Reply With Quote
Need a home inspection in Arizona? Check out InterNACHI's listing of Arizona certified home inspectors. Or, find a home inspector anywhere in the world with our inspection search engine.
Old 2/20/10, 3:51 PM
Christopher Currins, CMI Christopher Currins, CMI is offline
Certified Master Inspector ®
Join Date: Feb 2007
Location: Godfrey, IL
Posts: 17,717
Default Re: Old boiler system

Don't have the answers to your questions, but what I've seen done with this type of system is a heat-pump has been added and the original boiler system is used as a supplemental heating source (emergency heat).
Reply With Quote
Old 2/20/10, 4:17 PM
Jeffrey R. Jonas's Avatar
Jeffrey R. Jonas Jeffrey R. Jonas is online now
Certified Professional Inspector (CPI) ®
Join Date: Feb 2007
Location: Minnesota & Northern Iowa
Posts: 31,204
Default Re: Old boiler system

I also do not have your answers, but this may help you out...


Jeffrey R. Jonas
Owatonna, Minnesota

"I am not a teacher, but an awakener."
- Robert Frost, American poet (1874-1963).

"We Respect Our Clients Right to Privacy"

Reply With Quote
Old 2/20/10, 8:15 PM
Steven Taylor, 16000004979's Avatar
Steven Taylor, 16000004979 Steven Taylor, 16000004979 is offline
InterNACHI Member
Join Date: Jan 2007
Location: Freehold, NJ
Posts: 108
Default Re: Old boiler system

This boiler is probably 40% efficient. A new boiler can be 90+% efficient. I would replace it asap
Reply With Quote

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
980 Questions/Answers to the NHIE....Free! jbushart Legislation, Licensing, Ethics & Legal Issues for Inspectors 52 7/11/17 3:34 PM
Make $50.00 More Profit per Inspection with Septic Tanks ebeahm1 Ancillary Inspection Services 6 8/20/09 1:38 PM
Sprinkler System Vacuum Breaker Valve sbenson Plumbing Inspections 5 9/12/08 2:41 PM
OAHI Out Of Control - Bylaws Breached - Documented Proof rwand1 Canadian Home Inspectors 423 2/25/08 6:20 PM

All times are GMT -4. The time now is 2:20 PM.
no new posts