Heating your home. Thermostat settings.
05 December 2011, 11:37 PM
#31
I have ours set at 16 and comes on between 7-9am and 5-9pm
Through the day we use the coal fire in our lounge and burn wood and any thing else lying around and of course we wear extra jumpers
Trouble is the house being old and big is expensive to heat despite couple glazing ,insulations and cavity installations so gas is creeping up to £90 a month and coal is a £13 for 2 half bags of coal and a load of logs is £60
When there is just two of us we sit in our smaller sitting room as its a bit more cozy
I used to have a modern bungalow 20 years ago and that was a lot warmer house
Through the day we use the coal fire in our lounge and burn wood and any thing else lying around and of course we wear extra jumpers
Trouble is the house being old and big is expensive to heat despite couple glazing ,insulations and cavity installations so gas is creeping up to £90 a month and coal is a £13 for 2 half bags of coal and a load of logs is £60
When there is just two of us we sit in our smaller sitting room as its a bit more cozy
I used to have a modern bungalow 20 years ago and that was a lot warmer house
06 December 2011, 12:00 AM
#32
I have a Honeywell CM927. Good unit, marred by somewhat vague instructions. Plus there's a small oddity in regards of boiler cycle rates and minimum burner firing times (default is one minute, max five). So on occasions it'll fire up the boiler for a few minutes then shut off again (this is something to do with its proportional control). Which is a little wastefull IMO, as in our system all that will do is heat the spare room (thats the first room on the pipe run), ideally the minimum 'on time' needs to be more adjustable. Despite this one minute of gas wasteage, its miles better than our previous digital non-proportional thermomostat.
This is wireless, so there is a reciever unit that can be sited by the boiler or wiring junction box. This allows the room unit to be situated anywhere in the house. They also do a wired version which negates the need for a reciever, but needs the correct wires in the room its installed in (switching supply/feed).
It won't do hot water though, so if the heating system also heats a hot water tank, you'll need a seperate timer (or use the existing one).
I can't reccomend any others as the only other previous 'clever' stat/programmer I've used was a AQ6000 which was a self-compensating controller (and was a master at confusing plumbers
).
But I also looked at Worcester Bosch's programmers, one of which features outside temperature compensation and also proportional burner control (i.e high demand, full flame, low demand, low flame, whereas the Honeywell CM927 does this by cycling the boiler on and off). Unfortunately it wasn't compatible with my boiler.
This is wireless, so there is a reciever unit that can be sited by the boiler or wiring junction box. This allows the room unit to be situated anywhere in the house. They also do a wired version which negates the need for a reciever, but needs the correct wires in the room its installed in (switching supply/feed).
It won't do hot water though, so if the heating system also heats a hot water tank, you'll need a seperate timer (or use the existing one).
I can't reccomend any others as the only other previous 'clever' stat/programmer I've used was a AQ6000 which was a self-compensating controller (and was a master at confusing plumbers
).But I also looked at Worcester Bosch's programmers, one of which features outside temperature compensation and also proportional burner control (i.e high demand, full flame, low demand, low flame, whereas the Honeywell CM927 does this by cycling the boiler on and off). Unfortunately it wasn't compatible with my boiler.
06 December 2011, 12:13 PM
#36
Scooby Regular
Join Date: Aug 2002
Posts: 39,877
Likes: 0
Received 0 Likes
on
0 Posts
You would need to know how/when your boiler is at it's most efficient. Plus the levels of insulation in the house. Any draughts etc etc. Too many variables to work it out. You'd need to keep readings over several weeks and test out each method. But then you'd also need to keep track of what the outside temperature is, wind speed,etc etc.
Just man up and put on a thick jumper
Dave
Just man up and put on a thick jumper
Dave
Les
06 December 2011, 12:13 PM
#37
Thanks...I have one of those in a drawer somewhere
I actually meant the installer's manual is pretty useless with regards to compatability and ability of using the HC60NG/BDR91 reciever units with another CM927 (or other CM models) for multizone useage. Says in the spec sheets its possible (with up to 4 zones), then in the installer's manual it refuses to say anything!! 
And if you call the help number supplied, they don't seem to have a clue! 
Now if you can get me the fully detailed program binding/configuration procedures for several HC80NGs or BDR91s (one as boiler control, with one as zone valve(s) control) for a two zone system then that would be very helpful indeed.
Spec/brochures say it is possible (page 4:http://www.honeywelluk.com/documents/All/pdf/1128.pdf ) Closest I've got is that the main unit needs to be set as the syncroniser, but no other details.
(ps. I can wire/install as per a traditional Y plan (or S plan), but if left in default settings it will cause the boiler to cycle twice as much as it will need to (as outlined in the brochure), due to both units using proportional control, hence the need for the correct programming/configuration instructions).
Last edited by ALi-B; 06 December 2011 at 12:16 PM.
06 December 2011, 01:11 PM
#39
Scooby Regular
iTrader: (3)
Join Date: Mar 2006
Location: Corsham
Posts: 1,356
Likes: 0
Received 0 Likes
on
0 Posts
Mine is set permanently to 19 degrees as we have a "sealed" house and air recirculation system, our heating bills are rediculously low as the house is heated by any heat source including people. A good proportion of our hot water is solar heated as well.
06 December 2011, 01:52 PM
#40
Scooby Regular
Join Date: Aug 2005
Posts: 4,290
Likes: 0
Received 0 Likes
on
0 Posts
Thread
Thread Starter
Forum
Replies
Last Post
Mattybr5@MB Developments
Full Cars Breaking For Spares
28
28 December 2015 11:07 PM
Mattybr5@MB Developments
Full Cars Breaking For Spares
12
18 November 2015 07:03 AM
Pro-Line Motorsport
Car Parts For Sale
2
29 September 2015 07:36 PM
