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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 5843

United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
Central Heating: Timed heating vs room stat controlled
Currently we have a Vaillant Combi boiler that is controlled by timer for heating so on x hours in the morning then on for x hours in the evening,
The last plumber/heater person that came out when then diverter valve packed in suggested that it would cheaper to run the boiler with a room stat and set the stat at say 20degc and let the boiler do its stuff rather than timed

Both of us are out in work during day at various times (no kids just cats)

Has anyone gone from timed heating to stat controlled heating? Did it save money? 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock
Post #193305 13th Dec 2012 9:41pm
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kingofthesparks



Member Since: 06 Jan 2011
Location: Very close to Watford gap services , northants
Posts: 987

United Kingdom 2012 Defender 90 Puma 2.2 HT Fuji White
Yes makes sense everytime just leave it at your desired temp and let it do its thing all year round Thumbs Up
Post #193308 13th Dec 2012 9:45pm
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Landlord



Member Since: 27 Oct 2009
Location: Hampshire
Posts: 582

United Kingdom 2007 Defender 90 Td5 HT Cairns Blue
You should be using both for combi with radiators, different setup for underfloor heating.

Set TRV's half way, room stat at about 19 / 20 degrees and the timer for about 3+ hours in the morning and 5+ at night depending on weather seasons.

During periods of prolonged cold spells I have run the heating 24/7 with room stat set at 20 degrees. This gives best economy with adequate heating.

We run a number of houses and use this setup to achieve best heating at acceptable costs. 2007 TD5 90 Hard Top
Post #193314 13th Dec 2012 9:51pm
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Dave-H



Member Since: 08 Feb 2011
Location: Surrey
Posts: 1507

England 2007 Defender 90 Puma 2.4 HT Tonga Green
Likewise, i've never used the timer, our heating is 'on' constant .... we just turn the stat down to 17-18 overnight and when out at work, and set it to 20-22 when home/weekends.

Happy with my bills, cheaper than next doors Thumbs Up Guns and Landrovers .... anything else is irrelevant.
Post #193315 13th Dec 2012 9:56pm
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5699

2006 Defender 110 Td5 USW Zermatt Silver
Depends on construction, insulation of the property.

Most uk properties are not built/insulted good enough to retain heat, so a timed thermostat controlled system is normally best.

Andy
Post #193321 13th Dec 2012 10:13pm
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noworries4x4



Member Since: 24 Dec 2010
Location: Newton Abbot Devon
Posts: 1195

England 
I have been told by various heating engineers that you should turn the water temp right up to max and then use both room/radiator stats and a main central control stat set to 20deg. 1hr on before you get up for 2hrs and then all evening while you are home and 24hrs over the weekend. Do not turn system off if away for a long weekend as takes to long to heat the house up again might as well have just left it set as above. If everything is under control you are not going fast enough.

Every Day 16 MY Discovery 4 Commercial Workshop and Escort Vehicle
Weekends 07MY L322 TDV8 Vogue SE
Series 1 80" 3ltr 6cyl with overdrive
No Worries 4X4
Post #193343 13th Dec 2012 11:09pm
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5699

2006 Defender 110 Td5 USW Zermatt Silver
I assume when you say 'turn the water temp up to max', you are talking about the boiler stat not the water as in the DHW? As this would be dangerous due to scalding and also cause excessive scale in most systems.

Andy
Post #193361 14th Dec 2012 5:02am
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ken



Member Since: 18 Aug 2009
Location: Banging Birds with my bitches !!
Posts: 4328

United Kingdom 
Hot Water 24/7

CH 24/7 with rads turned off in Rooms with Log Burners inc Hall way as latent heat from the burners keeps the hall tosty
Post #193366 14th Dec 2012 6:44am
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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 5843

United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
Interesting replies chaps - thanks
The house is a 3 bed semi 1975 MY.

Cavity insulation, loft insulation (loft has Upvc facias with vents all round to allow it to breathe)
Windows all UPVc

The rads are a selection probably of the older type, single panel single convection, double panel single convection and one rad double panel double convection. I will next year replace the older ones with new DP DC rads. The bathroom rad is a towel one. 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock
Post #193387 14th Dec 2012 8:24am
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LR90XS2011



Member Since: 05 Apr 2011
Location: bickenhill
Posts: 3641

United Kingdom 2011 Defender 90 Puma 2.4 XS CSW Galway Green
Landlord wrote:
You should be using both for combi with radiators, different setup for underfloor heating.

Set TRV's half way, room stat at about 19 / 20 degrees and the timer for about 3+ hours in the morning and 5+ at night depending on weather seasons.

During periods of prolonged cold spells I have run the heating 24/7 with room stat set at 20 degrees. This gives best economy with adequate heating.

We run a number of houses and use this setup to achieve best heating at acceptable costs.


Sounds Like my set up, timer on the boiler and thermostat in the lounge that overrides the timer set at 20c heating comes on 30mins before I get up and switchs off 30mins before I go out, and comes on 30 mins before I plan to get home and goes off at my usual bed time, I also have thermostatic valves in all rooms except the lounge all set at 3 so no individual rooms get hot, all my rads are acova (old school tube type) and wow to they throw out some heat, bill for a 3 bed 1960s semi is about £750pa with British Gas DEFENDER 90 TDCI XS,

I hope everyone is well and your land rovers make you happy
Post #193566 14th Dec 2012 8:03pm
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Dave-H



Member Since: 08 Feb 2011
Location: Surrey
Posts: 1507

England 2007 Defender 90 Puma 2.4 HT Tonga Green
£750pa .... Shocked

Also a 3 bed semi, circa 1964 ... i pay £48 per month, and it's always in credit Razz

Even happier now Cool Guns and Landrovers .... anything else is irrelevant.
Post #193573 14th Dec 2012 8:49pm
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LR90XS2011



Member Since: 05 Apr 2011
Location: bickenhill
Posts: 3641

United Kingdom 2011 Defender 90 Puma 2.4 XS CSW Galway Green
Dave-H wrote:
£750pa .... Shocked

Also a 3 bed semi, circa 1964 ... i pay £48 per month, and it's always in credit Razz

Even happier now Cool


perhaps I need some more insulation!! Sad DEFENDER 90 TDCI XS,

I hope everyone is well and your land rovers make you happy
Post #193581 14th Dec 2012 8:53pm
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walfy



Member Since: 29 Aug 2007
Location: Frome
Posts: 2658

 
Bloody hell you lot. I live in a 3 bed terrace house in Brizzle. Centre of 3 houses so not a small typical terrace house. Cavity wall down front and back, 12" of insulation in the loft, new double glazing last year all round. I have an 8KW log burner in living room. Over the last 3 bills, given 3 monthly my bill has averaged 13 quid a 1/4!!!!! Thumbs Up Thumbs Up
We turn the CH on twice through the winter to stretch it's legs. Woodburner is running most nights and warms the whole house through. The only other gas powered appliance in the house is the hob for cooking.
I couldn't cope with paying 40quid + every month for gas!!!!

Wood is free but I have to drive best part of 200 miles to get it so I reckon 2 1/2 ton costs me 80 quid. Plus if the tree surgeon I get it from is working in my area I get the nod and collect direct from site. Nice if it's ash. 110 D250 SE HT
110 USW SOLD
RRE HSE Dynamic Gone, wife killed it
VOLVO XC60 R Dynamic with some toys

Polaris RZR 900XP SOLD
Post #193586 14th Dec 2012 9:00pm
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noworries4x4



Member Since: 24 Dec 2010
Location: Newton Abbot Devon
Posts: 1195

England 
£750 pa wowsers

3 bed bungalow we dont spend that much for our dual fuel from British Gas. And then we get a load back for selling them our solar power. If everything is under control you are not going fast enough.

Every Day 16 MY Discovery 4 Commercial Workshop and Escort Vehicle
Weekends 07MY L322 TDV8 Vogue SE
Series 1 80" 3ltr 6cyl with overdrive
No Worries 4X4
Post #193590 14th Dec 2012 9:04pm
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Retroanaconda



Member Since: 04 Jan 2012
Location: Scotland
Posts: 2644

Scotland 
I'm in the "lucky" position of living in an 18th century terraced house. Single-glazed all round, and no insulation whatsoever. Suffice to say the heat gets out pretty easy! Oil-fired heating as well. There's an open fire too which is a bonus I guess. No idea what my bill will be, but I would imagine it'll be the wrong side of £500 to re-fill the tank in the spring Sad

Looking forward to moving to a more modern property in the future, with insulation and double glazing and mains gas. Added benefit of a gas hob, can't stand these damn electric ones Sad
Post #193592 14th Dec 2012 9:10pm
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