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Richard Owen
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« on: October 23, 2009, 12:11:04 PM » |
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Hi guys,
More on the refurbishment of next door.
I need to upgrade the heating system. And I want to put in a highly controllable system as well. Ideally I'd like to make each room a zone.
Is this practicable?
Ideas please.
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44 Yingli 230Wp panels feeding into 2x Solar Edge SE5000 inverters .20x 58mm SE, 20x 58mm SW, Solar Thermal feeding 320l thermal store. 10kW heat pump. 300W of Hydro Power . |
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Brandon
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« Reply #1 on: October 23, 2009, 12:17:40 PM » |
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UFH or rads?
How much re-piping are you doing anyway?
Possible , yes
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changing the world, one roof at a time ..."We can't be B&Q astroturfers. That's one conspiracy theory too far. You should cut down on the pot." - Wookey |
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Pat_
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« Reply #2 on: October 23, 2009, 12:49:24 PM » |
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Probably obvious, but to justify separate zones, you have to have a fair degree of certainty that the zones will be separated with closed doors.
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Richard Owen
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« Reply #3 on: October 23, 2009, 01:08:27 PM » |
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Ok chaps, more detail required.
Building is a bungalow, sort of L shaped.
Foot of L, Living, dining, kitchen area is one big fluid space. One zone.
Corner of L, Master bedroom. One Zone and Master bedroom dressing room, one zone or same as Master bedroom? Not fussed really.
Leg of L, Bedroom corridor, one zone.
Bedrooms (4 off) one zone each.
Doors self-close.
UFH going in the living area not that that matters for control purposes as it will need to be linked to kitchen and dining heating systems (fan convectors)
Repiping all the bedrooms and dressing room. Neighbour fancies skirting rads.
Does that help?
Boiler is currently oil fired venerable Worcester Danesmoor.
Plan is to move to log batch boiler heating massive thermal store with oil as backup so if we could incorporate that, that would be good.
Also, remote access (web or phone) to the heating system control would be an advantage.
Let me know if I'm asking for too much.
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44 Yingli 230Wp panels feeding into 2x Solar Edge SE5000 inverters .20x 58mm SE, 20x 58mm SW, Solar Thermal feeding 320l thermal store. 10kW heat pump. 300W of Hydro Power . |
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Brandon
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« Reply #4 on: October 23, 2009, 01:32:28 PM » |
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sounds reasonable.
i presume that you will be employing a 3 way diverter when using the oil back up once the log system is in in order to avoid heating the accumulator with oil.
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changing the world, one roof at a time ..."We can't be B&Q astroturfers. That's one conspiracy theory too far. You should cut down on the pot." - Wookey |
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crispy
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« Reply #5 on: October 23, 2009, 02:01:51 PM » |
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Doesn't using TRVs on each rad, effectively give you a zone per room? If you want more sophistication, how about digital TRVs, or perhaps remote TRVs.
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Richard Owen
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« Reply #6 on: October 23, 2009, 02:41:38 PM » |
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sounds reasonable.
i presume that you will be employing a 3 way diverter when using the oil back up once the log system is in in order to avoid heating the accumulator with oil.
Haven't got that far yet. Still trying to get the house warm. It'll be two years before there's enough wood felled, logged, stored and seasoned before its worth buying the batch boiler. Just wanted to give as full a picture as possible. |
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44 Yingli 230Wp panels feeding into 2x Solar Edge SE5000 inverters .20x 58mm SE, 20x 58mm SW, Solar Thermal feeding 320l thermal store. 10kW heat pump. 300W of Hydro Power . |
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PhatBob
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« Reply #7 on: October 23, 2009, 02:57:40 PM » |
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Doesn't using TRVs on each rad, effectively give you a zone per room? If you want more sophistication, how about digital TRVs, or perhaps remote TRVs.
Got any suggestions for Digital TRVs? A google (tried TRV and Radiator Valve) didn't bring much of any use. Cheers Rob |
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30 x 47mm Navitron Tubes.
250l McDonald Engineers DHW Heat store.
Firebelly woodburning stove.
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crispy
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« Reply #8 on: October 23, 2009, 03:43:30 PM » |
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Have a look at Honeywell HR20, HR40, HR80, and cm-zone. They are tough to get hold of in the UK, but very common in Germany. Once you end up on German plumbing websites from looking for the above, having a look around more widely and you'll find many other manufacturers too.
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guydewdney
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« Reply #9 on: October 23, 2009, 05:26:29 PM » |
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I have used the HR20 - ordered from german ebay. Instructions in English - yet Honeywell UK refuse to admit they exist!  Nice and easy to use, good battery life. |
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dhaslam
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« Reply #10 on: October 23, 2009, 05:41:37 PM » |
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It is nice to have the controls for the heating inside the doors to rooms rather than on the radiators. This way you can give the override button a press either on or off as needed. Also nice to be able to read the temperature as you enter the room.
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crispy
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« Reply #11 on: October 23, 2009, 05:49:10 PM » |
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Here's an ebay search for all kinds of clever digital TRVs from Germany: http://heimwerker.shop.ebay.de/i.html?_nkw=Heizk%C3%B6rper*&_sacat=84188&_trksid=p3286.m270.l1313&_dmpt=Systemkomponenten_Heizung&_odkw=&_osacat=84188 And here's an interesting document, that I think documents a HR20 being dismantled, and includes information on how to 'hack' it! http://www.carluccio.de/images/e/e1/Hr20-analyse.pdfIf you want centralised control/display, then you need a system with remotely controlled TRVs, such as the 'cm zone' system which costs about £400 for 6 radiators and allows them to be divided into two zones. |
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crispy
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« Reply #12 on: October 23, 2009, 05:55:10 PM » |
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desperate
Guest
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« Reply #14 on: October 23, 2009, 07:31:47 PM » |
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Hi Richard
Keep it simple I say, why not basic timers controlling 2 port zone valves and room stats, individual time and temp for each room, that is nice and user freindly and simple to maintain/repair.
Desperate
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