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Hi all, Am kind of re-posting this from the bottom of a previous post, I have a worcester greenstar 37CDi combi and I am looking into lagging the internal pipes now as well the external ones as we house it in a very cold outbuilding and I think the boiler is using up gas trying to protect...

Sorry, just one more thought on all this. In terms of the frost protection, am I right in thinking that the small boiler tank that contains the water is insulated internally so this part of it is ok and won't be affected much by being in a colder place? Is it just the pipework that's suffering...

So we just bought this old 1920s cottage style bungalow and the paint work is literally an abortion right now, it's flaking off in its droves and exposing brickwork underneath, we need to weatherproof this as soon as possible but are wondering what the best render is to use and wondering if...

I'm pretty sure this definitely has something to do with the sudden drop in temperature, its reaching near -4 in some areas at the moment, even my new greenstar 37CDi (almost too powerful for my current system) is taking a bit longer to reach room temp. I would strongly recommend turning all...

Agree with above comment, been looking at similar issues in the last few weeks as we just installed a room thermostat and as the weather has dropped, at my old setting (about halfway on the boiler CH thermostat) the room would never get up past 18.5 no matter how much higher you set the room...

Thank-you, that's really useful, ill try that tomorrow, remonitor the output and let you know what happens, I didn't know it was possible to tweak so many things. Lol almost makes miss my old chugging simple minded boiler... until another diverter valve wears out...:-(

Ok well I just checked online and I just got my gas bill from the last month (details shown below) which to be fair has been pretty darn cold. This was from the old boiler, and you can see I used 5 units a day according to this, on average? And i've had it at 20 degrees every evening so this...

Ah ok, so yes thats probably about half the output that could possibly be fed into the rads then as i worked out they can take 8kW, I'm pretty sure they definitely werent at full heat as they werent scolding hot so is this not feasible then?

I will check the manual, if I cant find it, should I call Worcester and ask if this is an option? I've got a feeling it might not be an option as I've gone through that manual with a toothcomb but will definitely look. Again, does this have anything to do with pump speed at all?

Should probably mention something the installer also mentioned, that our boiler is housed in an outbuilding that is really cold and the indoor pipes are not lagged. Should i be concerned that the water in the pipes is so cold this is taking longer to heat or even that when i turn the boiler off...

muggles, thanks for that, it sounds a great plan but I didnt know that was an option, any idea how thats done at all as I would have no idea? Not related to the pump speed is it??

Does 6 cubic meters equate to 4.6kW? Not sure how thats possible, if my ravenheat had an output minimum of 7-8kW and max 24kW and I had it set to around two thirds of full? Sorry, maybe I'm getting something mixed up here? I know that the 6 cubic meters is around 66kWh but this is a different...

Yeah the boiler was fitted just after the new rads were put in and the system was then balanced, I had the installer check this again tonight though and he said it is fine, he couldnt find any fault with the boiler or the pressure/pipes/gas consumption at the meter

Oh yes and the system was definitely balanced so I think that can be ruled out. Still wondering about this "e" mode on the DHW? Any ideas anyone?

Oh no, I wasn't expecting to be able to power both bathrooms at once, but there'll be more water based areas and i'd like to think it will be possible to use hot taps and have a shower at least and if the house is going to be 4 bed, then I don't want to be operating a boiler that's struggling...

Its between -1 and -3 outside here at the moment, so I'm guessing its working pretty hard, but still, what I dont understand is how the old boiler can have been using so much less, I guess this must just be because it was a lot smaller and hence more closely matched to our current system...

You are most likely correct, i know it's know its too big for the current system but as I said before we plan to extend and that will add on almost twice the size of room space so twice the rads, underfloor heating and a second bathroom hence the 37CDi choice (we dont want a large water tank)...

Sorry, appears to be some fault with the site as keeps repeating my posts, sorry!!

R.e. three hours to heat to room temp... I have no idea, I would have thought that since its a more powerful boiler it surely should have taken less time?? Ive actually replaced two of the rads for double convectors and twice the length, not sure if this has affected it but i know that between...

No I think its on for 9 hours but I've also got it set to 15/16 overnight so it's less heat but its another 5 hours on occasional firing? Plus we obviously both shower once a day on top of this and my hot water is timed on for two hours in the morning and from 5pm all evening. I really don't...