hot water heater

Old 12-28-10, 03:26 AM
Thread Starter
Join Date: Jan 2005
Location: southeast pennsylvania
Posts: 579
Received 6 Upvotes on 6 Posts
hot water heater

I have an old cast iron boiler with the summer -winter hookup. The heat is by steam. I would like to install an electric hot water heater so I don't have to run the boiler in the summer. I have been told that sometimes when that is done the seals on the boiler will go bad and will be costly to repair. How can I still install a hot water heater? Can I pipe it in so the water goes through the hot water heater and also through the boiler, perhaps preventing any seal damage?
Old 12-28-10, 07:51 AM
Join Date: Sep 2009
Location: U.S. Midwest
Posts: 1,173
Upvotes: 0
Received 0 Upvotes on 0 Posts
Ask them What Seals? I wouldn't worry about it at all. There are millions of hot-water boilers that are turned off in the summertime, mainly in areas where natural gas is available and most people use separate, stand-alone water heaters.
Old 12-31-10, 07:44 AM
Join Date: Dec 2010
Location: USA
Posts: 112
Upvotes: 0
Received 0 Upvotes on 0 Posts
I had a boiler that would leak water on the floor when I would shut it down. The metal would contract when it got cold, and it leaked at the seams between sections. No problem when warm.
Old 12-31-10, 08:43 AM
NJT's Avatar
NJT is offline
Join Date: Oct 2006
Location: USA
Posts: 19,710
Upvotes: 0
Received 8 Upvotes on 6 Posts
Yep... the problem is seen more often with boilers that have spent their life as 'warm start' units, then at some point converted to 'cold start'. Also, boilers assembled with 'push nipples' versus 'elastomeric seals' seem less prone to the problem.

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: