Installing Radiant Floor Without Access To Floor Joists? - HVAC - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > HVAC


Thread Tools Display Modes
Old 02-15-2012, 06:46 PM   #1
Join Date: Jan 2011
Posts: 10
Rewards Points: 10

Installing Radiant Floor Without Access to Floor Joists?

I own an old Victorian condo on the second and third floor and my heating situation is abysmal. I have the old stand up radiators in each room and an expiring furnace. I'm going to be redoing the flooring throughout the second floor and I like the idea of utilizing a radiant floor heating system. Obviously being on the second floor, I don't own the condo below me so I do not have access to the joints. Is there any way to install the system under a sub floor while I have all the floors ripped up?


aberrant is offline   Reply With Quote
Old 02-15-2012, 06:59 PM   #2
Join Date: Nov 2011
Location: Hartfield VA
Posts: 34,436
Rewards Points: 14,002

Odd post. If it's a slab floor then that would have to be the first floor with concrete under it.
One of the joys of living in a condo is you have no control over things that would make your life more comfortable.
Better Insulation in the walls, new double paned windows, more insulation in the attic would all be ways to save on heat.
Under floor heat is going to need a boiler or a dedicated water heater.
Do a Google search on Radiant heat.


joecaption is online now   Reply With Quote
Old 02-15-2012, 07:31 PM   #3
Join Date: Jan 2011
Posts: 10
Rewards Points: 10

I'm referring to the system that loops under the floor between joists:

Obviously the easiest way would be to take it directly to the sub floor if you could get access from below, however someone lives below and I don't think they would approve me ripping down their ceiling! Adding an additional water heater or boiler is not a problem as I own part of the basement. There's a total of 5 units, it used to be an old mansion that was divided into condo units.
aberrant is offline   Reply With Quote
Old 02-15-2012, 08:18 PM   #4
Join Date: Jul 2011
Posts: 615
Rewards Points: 500

What you want to do is possible but it is very labor intensive.You might be a lot better off replacing your stand up radiators with the new flat panel wall radiators.These radiators come in many shapes and sizes ,someone would have to show you a catalog.The down side is that you would have to have wall areas with no furniture in front of them.
There is also a radiant system that looks like baseboard which in most cases you would need to wrap around the whole room.
There are lots of options for you but the one you have talked about is the hardest and most expensive to do.
REP is offline   Reply With Quote

Thread Tools
Display Modes

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Installing outdoor floodlight - almost no wall access wylker Electrical 4 03-15-2010 12:19 PM
Installing and attic access and a "What is this?" cbaileyau General DIY Discussions 16 12-19-2009 02:54 PM
Installing an access panel in a Fiberglass Tub plou Plumbing 12 09-12-2009 08:02 AM
Installing pex radiant floor heat, questions. iMisspell HVAC 27 01-15-2009 07:03 PM
bamboo over radiant heat montaillou Flooring 7 07-25-2007 01:17 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1