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Thanks, puts the warranty issue into perspective, my main focus should be on selecting good installer. Then install correctly. The manuf instructions - that would be the booklet with benchmark form at the end. Make sure water is clean, magna-filtered. Once installed ensure serviced in line with...

Deciding on a combi boiler. Considering W-B 29 Cdi classic, Glowworm ultimate 30c and Ideal logic + HE30. W-B have the reputation & 5 year warranty but more costly. The Ideal Logic + boiler model from Ideals range is getting good reviews & has 5 year warranty. The glowworm ultimate comes...

For a new gravel footpath with regular use. To be layed on a firm 3" sub-base. What is most suitable gravel for a top dressing. For comfort of walking on, firmness underfoot & not sinking in. Considering water smoothed gravel such as pea gravel but would it be stable or move around when...

Good advice, thanks. Have basic thermostat wall mounted in hall. Wireless easier for RGI to install. Will check if design that can be secured so not get moved around. Else wired. Then advise tenants to set temp to 21 degrees and use TRVs to control temp in each room. But still end up with rad in...

Thanks for all this info. The posts in this thread have made me reconsider boiler selection. Maybe I will start new thread on boiler selection. Discuss specs & warranties, let you know which I choose. Clearly being able to modulate down to a few kW is v important. First will have good look at...

Yes, I'll go for uncomplicated to use. I'm trying to put in a system that affordable for a tenant to turn on. Which is why been talking about heating 1 room only. Monthly heating bills getting unaffordable. Timer to be 24 hour – maybe mechanical. Will have better idea on TRVs & thermostats by...

Rads will all be installed in empty spaces on walls. The TRVs will be oil filled & mounted low & vertical with air flow unobstructed.

We have 19 Litre/min on incoming cold water supply at 2.5 bar static pressure and bit over 1.5 bar dynamic. Also plan to fit a shower with water heated by combi. So want suitable hot water flow rate for a shower. DHW usage would be 1 person normally so not having other demands while shower on...

Did not realise that was an option. The council housing dept & building control all pushing TRVs. To comply with Part L to make the installation as efficient & controllable as possible. To enable tenants to keep down heating bills. No local RGIs mentioned wheel head valves. But also need...

I always use TRVs as on/off switches - is there another way for tenants to easily turn rads on/off in rooms you don'nt want to heat. The tenants always keep doors and windows tightly shut. Advising them that heating entire flat would be more efficient would be hard sell. I would guess more gas...

If we had non-TRV rad in living room means this room would always be heated when heating is on. Tenant would not have option of turning off the living room heating. But this room often only required to be heated in evenings. In day time it would usually be kitchen that heated. Tenants will not...

Never heard of weather compensation - this new to me. Will google.

Good point about having wide ranging boiler that can power all rads but also able to modulate down to 4 KW - would guess that's what needed for background warmth to 1 room. Need to look again at boiler selection. Shortlisted these brands as reliable with good after sales service and guarantees...

I am specifying a wet central heating for a rented out 1 bed flat. W-Bosch Combi boiler + 5 radiators + portable wireless thermostat. I would like all radiators to have TRVs so tenants are able to turn off all radiators apart from in the room that they want to heat. I have had 2 quotes &...