Monoflo system - replace radiator with K84

Reply

  #1  
Old 02-08-16, 04:17 PM
jag11727's Avatar
Member
Thread Starter
Join Date: Apr 2010
Location: usa
Posts: 21
Received 0 Votes on 0 Posts
Cool Monoflo system - replace radiator with K84

Hi all, have a couple of questions . I will be removing a bay window and the 6ft radiator below it to install French doors. i will replace the radiator with a beacon morris K84. The K84 will be installed in the floor and inserted between the two existing 1/2 inch monoflo feeds.

1) i am approximating that i will increase the 1/2 copper piping by about 7 - 8 ft (3.5 to 4 per side) due to centering and shifting back unit. Will this create an issue for flow?

2) Being that i will have the system down can i insert an air vent into one of the 1/2 lines to bleed off air. (watts FV-4M1)

Sincerely - the novice
 
Sponsored Links
  #2  
Old 02-08-16, 04:24 PM
Member
Join Date: Jul 2009
Location: Toronto
Posts: 1,174
Received 0 Votes on 0 Posts
1) are there monoflow tee's on the both branch copper lines to the new becon morris kick space heater ?
2) Yeah by all means add in air elimination, I would do both the supply and return lines.

I hate monoflow, it's a great idea in concept, but there are so many ways to screw it up and I think I have seen all of them. Having said that, I will probably run into a few more along the way.
The K84 needs good flow, if it where me I would up size the lines to 3/4" or even better bring them back to the boiler room and connect to the boiler in such a way as to expose them to the max flow of the pump (you can then trim the flow down if needed). You can also add in a shut off and purge valve to ensure there is no air locks
 
  #3  
Old 02-10-16, 07:29 PM
Member
Join Date: Nov 2011
Location: USA
Posts: 421
Received 3 Votes on 3 Posts
You also might consider a purge valve arrangement on the BM return piping.
 
  #4  
Old 02-11-16, 02:10 PM
jag11727's Avatar
Member
Thread Starter
Join Date: Apr 2010
Location: usa
Posts: 21
Received 0 Votes on 0 Posts
Yes there are tee's on both ends. I am simply removing the radiator and inserting the K84. My plan is to simply cut the 1/2 below the floor line, run new copper and fittings and insert the K84. I did this in my kitchen with another under cabinet toe kick and it worked out well, it throws off some nice heat.Name:  20160211_155031.jpg
Views: 473
Size:  36.1 KBName:  20160211_154937.jpg
Views: 446
Size:  21.4 KB I would love to increase lines to 3/4 but will not mess with the main monoflo line. if i screw something up I loose my heating and as you stated is easy to do with this type of system. I have gotten air locks before so adding the cost of 25.00 is trivial. There is a ball check valve on one side
 
  #5  
Old 02-11-16, 02:27 PM
lawrosa's Avatar
Super Moderator
Join Date: Dec 2010
Location: Galivants Ferry SC USA
Posts: 18,014
Received 41 Votes on 36 Posts
My opinion would be install the new k84 with what you have..

While the system is down simply add a ball valve between both mono tees. When you want to purge shut the valve.. all flow will go through the k84 for easy air elimination. When done open the valve and run normally...

I would not install that air vent...

What type expansion tank is on your boiler????
 
  #6  
Old 02-11-16, 04:53 PM
Member
Join Date: Jul 2009
Location: Toronto
Posts: 1,174
Received 0 Votes on 0 Posts
If you add Any type of valve in the main monoflow line, make sure it's a full flow ball or gate valve (darn I say that word).
 
  #7  
Old 02-11-16, 05:19 PM
lawrosa's Avatar
Super Moderator
Join Date: Dec 2010
Location: Galivants Ferry SC USA
Posts: 18,014
Received 41 Votes on 36 Posts
gate valve (darn I say that word).
Ha ha ha ha... you made me laugh...
 
  #8  
Old 02-13-16, 01:26 PM
jag11727's Avatar
Member
Thread Starter
Join Date: Apr 2010
Location: usa
Posts: 21
Received 0 Votes on 0 Posts
got it, funny, went back and looked at other kicker and what you suggested is exactly what I did. Name:  20160213_151347 (2).jpg
Views: 327
Size:  25.7 KB here is the expansion tank. the burner is next but waiting until spring to tackle that mess.
 
  #9  
Old 02-18-16, 05:03 PM
jag11727's Avatar
Member
Thread Starter
Join Date: Apr 2010
Location: usa
Posts: 21
Received 0 Votes on 0 Posts
Thank you gents for all your advice but have one more question. In reading the "Kickspace - no heat" thread I read there was some mention that kickspace heaters add pressure due to the labyrinth of small internal piping of the heating element. Since this is a floor installation I like the turnbonics model attached vs the BM K84. Does anyone have any feedback or adverse experience with this KFM 6+ unit?http://turbonicsinc.com/pdf/KICKSTER-FLOOR-MOUNT.pdf
 
Reply

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


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