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

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 12-17-2013, 05:00 PM   #1
Member
 
Join Date: Oct 2012
Location: Derry, NH
Posts: 464
Share |
Default

FHW / baseboard heat takes forever


So we have a brand new boiler (2 years old) in a 100-year old bungalow in NH. Just bought the house 18 months or so ago.

This morning was brutally cold outside (-5F or so), and the heat was having a hard time getting the house to heat up at ALL. Keep it at 58 overnight, up to 62 in the morning (yes it's cold but oil is expensive). Even after two hours it had barely gotten up to 59. I don't remember it having this much trouble getting up to temp last year, even on cold days.

The boiler is certainly heating the water (hot water for shower is on the same system and was hot throughout), and the pipes going to the baseboards are hot enough to hurt if you touch them, so.... I kind of suspected that the circulator pump might have gone (just one zone on the one floor, no heat upstairs), because it's been knocking a bit lately and it's the only thing in the system that's older (at least, it LOOKS older), but... again, the pipes are HOT so... I can't imagine that's it.

Basically I'm overreacting and hoping everyone will tell me what I already think I know : that it's just crappy (probably nonexistent) insulation and a particularly cold day and not something wrong with the system itself.

TheBobmanNH is offline   Reply With Quote
Old 12-17-2013, 06:22 PM   #2
how
Member
 
Join Date: Feb 2011
Location: Vancouver BC
Posts: 1,489
Default

FHW / baseboard heat takes forever


Make sure the fins on your baseboard are not dust filled and stopping the house air from flowing through them.
Circulation issues can be verified by checking the temp of the inlet and outlet of the boiler. Water leaving the boiler should be hot. The water returning should be cooler, reflecting the temp loss of water giving up it's heat through the radiators.
An impeded flow will usually cause the water pressure guage to jerk up and down when that knocking sound is happening.
A limited water flow can be from a faulty pump/impeller, an air lock or a gate valve not opened up enough.
What is the pressure and temp showing on your tridicator?

how is offline   Reply With Quote
Old 12-17-2013, 06:37 PM   #3
747
registered
 
747's Avatar
 
Join Date: Feb 2005
Location: Illinois (kankakee county)
Posts: 1,330
Default

FHW / baseboard heat takes forever


What is the water temp on boiler. When it fires up stand there and watch it. When cold water comes back temp should go way down. Now stand there and see what temp the boiler shuts off at. What kind of circulator pump do you have. Something isn't rite. I have hotwater heat.
747 is offline   Reply With Quote
Old 12-17-2013, 07:02 PM   #4
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 24,369
Default

FHW / baseboard heat takes forever


2 hours to raise 1 degree, even at -5 thats a bit too long.

What temp is the aquastat set to. Post pics of your circulator.
__________________
When posting in certain forums, knowing your location will help others give better feedback/advice/solutions to your questions.
beenthere is offline   Reply With Quote
Old 12-17-2013, 07:40 PM   #5
AKA HVACTECHFW
 
Join Date: Nov 2010
Location: NE Indiana
Posts: 2,317
Blog Entries: 1
Default

FHW / baseboard heat takes forever


Is the circ pump running for the space heating zone?
__________________
IT IS WHAT IT IS
hvactech126 is offline   Reply With Quote
Old 12-18-2013, 09:27 AM   #6
Member
 
Join Date: Oct 2012
Location: Derry, NH
Posts: 464
Default

FHW / baseboard heat takes forever


Hmph. Thanks for the input everyone. I'll snap a few pics tonight and observe a bit. Last night the heat was perfectly fine, FWIW, as it generally is. It was just yesterday morning that it wasn't.
TheBobmanNH is offline   Reply With Quote
Old 12-18-2013, 03:13 PM   #7
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 24,369
Default

FHW / baseboard heat takes forever


Is L1 powered all the time, and the aquastat's B1 connected to the limit terminal of the primary. Or is teh aquastat shutting off all the power to the primary.
__________________
When posting in certain forums, knowing your location will help others give better feedback/advice/solutions to your questions.
beenthere is offline   Reply With Quote
Old 12-18-2013, 03:14 PM   #8
Member
 
Join Date: Oct 2012
Location: Derry, NH
Posts: 464
Default

FHW / baseboard heat takes forever


Quote:
Originally Posted by beenthere View Post
Is L1 powered all the time, and the aquastat's B1 connected to the limit terminal of the primary. Or is teh aquastat shutting off all the power to the primary.
I'm afraid I don't quite understand that question. Hopefully pics I post this evening will answer this?
TheBobmanNH is offline   Reply With Quote
Old 12-18-2013, 03:24 PM   #9
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 24,369
Default

FHW / baseboard heat takes forever


Many times. The primary on a boiler, is only powered when the aquastat calls for heat. So if you want an extended burner motor run time. unless the L1 terminal of the primary is energized even when there is no call for heat. Its not possible for the primary to do it.
__________________
When posting in certain forums, knowing your location will help others give better feedback/advice/solutions to your questions.
beenthere is offline   Reply With Quote
Old 12-18-2013, 05:19 PM   #10
Master General ReEngineer
 
Bondo's Avatar
 
Join Date: Dec 2007
Location: Chaumont River, Ny.
Posts: 3,670
Default

FHW / baseboard heat takes forever


Quote:
Originally Posted by TheBobmanNH View Post
So we have a brand new boiler (2 years old) in a 100-year old bungalow in NH. Just bought the house 18 months or so ago.

This morning was brutally cold outside (-5F or so), and the heat was having a hard time getting the house to heat up at ALL. Keep it at 58 overnight, up to 62 in the morning (yes it's cold but oil is expensive). Even after two hours it had barely gotten up to 59. I don't remember it having this much trouble getting up to temp last year, even on cold days.

The boiler is certainly heating the water (hot water for shower is on the same system and was hot throughout), and the pipes going to the baseboards are hot enough to hurt if you touch them, so.... I kind of suspected that the circulator pump might have gone (just one zone on the one floor, no heat upstairs), because it's been knocking a bit lately and it's the only thing in the system that's older (at least, it LOOKS older), but... again, the pipes are HOT so... I can't imagine that's it.


Basically I'm overreacting and hoping everyone will tell me what I already think I know : that it's just crappy (probably nonexistent) insulation and a particularly cold day and not something wrong with the system itself.
Ayuh,..... Ya say ya check the pipes, 'n they were Hot,....

Where'd ya check 'em,..?? At the boiler,..??
How 'bout at the baseboards,..?? Each room in the loop,..??

What was the temp showin' on the tridicator gauge,..??
What pressure,..??

Is the circulator pump still makin' noise when it's callin' for heat,..??
Bondo is offline   Reply With Quote
Old 12-18-2013, 05:30 PM   #11
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 24,369
Default

FHW / baseboard heat takes forever


Quote:
Originally Posted by TheBobmanNH View Post
I'm afraid I don't quite understand that question. Hopefully pics I post this evening will answer this?

Ah ha. I'm answering in the wrong thread. Sorry about that.
__________________
When posting in certain forums, knowing your location will help others give better feedback/advice/solutions to your questions.
beenthere is offline   Reply With Quote
The Following User Says Thank You to beenthere For This Useful Post:
oh'mike (12-18-2013)
Old 12-19-2013, 10:27 AM   #12
Member
 
Join Date: Oct 2012
Location: Derry, NH
Posts: 464
Default

FHW / baseboard heat takes forever


Quote:
Originally Posted by Bondo View Post
Ayuh,..... Ya say ya check the pipes, 'n they were Hot,....

Where'd ya check 'em,..?? At the boiler,..??
How 'bout at the baseboards,..?? Each room in the loop,..??
I was checking the baseboards themselves, in each room (both at the "beginning" and "end" of the loop).

Quote:
What was the temp showin' on the tridicator gauge,..??
What pressure,..??
Pressure rarely moves from the 12-14psi range.

Temperature goes between maybe 160 and 190?

Quote:
Is the circulator pump still makin' noise when it's callin' for heat,..??
Yes, it ONLY makes noise when calling for heat. It's generally pretty quiet, but I hear it click / thunk every few seconds (different from the click of expanding pipes and whatnot).
TheBobmanNH is offline   Reply With Quote
Old 12-19-2013, 10:31 AM   #13
Member
 
Join Date: Oct 2012
Location: Derry, NH
Posts: 464
Default

FHW / baseboard heat takes forever


Sorry some of these pics are blurry. Stupid cameraphones.

Boiler :



Zones :


Circulator Pump (I tried to get a shot of the label and couldn't because it's stupidly up against the ceiling and my camera just would NOT focus correctly on it. It's a Taco, that's hte best I can tell without busting out a mirror or something)



Zone Valves (one for heat, one for hot water tank)



Control unit



And the thermostat / pressure guage at two extremes


TheBobmanNH is offline   Reply With Quote
Old 12-19-2013, 03:34 PM   #14
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 24,369
Default

FHW / baseboard heat takes forever


The label for the circulator is on top of it. the electrical box cover plate has the model number on it.
__________________
When posting in certain forums, knowing your location will help others give better feedback/advice/solutions to your questions.
beenthere is offline   Reply With Quote
Old 12-19-2013, 06:06 PM   #15
Member
 
Join Date: Sep 2013
Location: New Hampshire
Posts: 192
Default

FHW / baseboard heat takes forever


does that taco zone control have a priority over ride for the domestic hot water?If it does and it is set to priority it will make sure the tankless temp or zone is met before fhw temp is met. If you or the whoever got up and jumped in the shower it will shut down the zone valves until tankless or that zone is satisfied.11 below at my house.

hpyjack2013 is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
VisionPRO Setup Functions & Heat Pump infoskr HVAC 34 11-20-2013 04:24 PM
Electric baseboard VS Heat pump Mattme123 HVAC 20 09-21-2012 08:41 PM
wainscot above baseboard hot water heat scroff Remodeling 7 09-11-2012 11:57 AM
uneven heat: testing ceiling radiant heat /finding cables/fix cables martinradiant Electrical 1 10-03-2010 08:22 PM
Baseboard Heat 80% Rule Question bltglt507 Electrical 1 11-06-2009 11:17 AM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.