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You should have a gauge beside the fill point. Topping up the system should really be only done when the system is cold and this is when a true reading will be obtained. Doing it when the system will only be when the water is expanded due to being hot and give a higher pressure reading. Typical...

It would be far cheaper to stick with gas and install a conventional wall hung gas boiler and re-route pipework to suit.

You need to choose a flow rate to match the flow rate of the system. You can get combis with flow rates upto 17 l/m but typical would be 12 l/m. Baths have large flow rates but there are tricks to reduce them. The problem with running a combi on its limit is when another tap in the home is...

I've often come across this, especially in bungalows where heating pipes travel through the attic space and drop down into the hot press and the system is open vented. If so, the usual culprit is lack of static head. Basically, if you do not have 1/3 of the head of circulating pump between the...

Yes, 100mm with 50mm standard white polystyrene on the inner leaf. This had come away from the wall and it could be heard cracking when it was pushed back against the wall during pumping. Still extremely happy with the job. It has definitely made the house about 3C warmer overall and a large...

TBH I do not wish to take this thread further off topic than you already have but I will answer your questions. You brought up a similarity of 1,000's ppm with a coal being in a similar situation and it being perfectly safe. The topic and my argument is solely based upon BBU's. If you wish to...

So you would be happy leaving a gas boiler connected bellowing out 1,000's of ppm of CO just because it has a flue? What happens when something goes wrong such as the tenant blocking a draughty vent or a bird builds a nest on the flue terminal? Limits are there so that when things go wrong...

Typically, for standard efficiency boilers, I typically see about 25ppm CO / ratio 0.0005. Perhaps a little higher on some models. BBU's after a service would be in the region of 90ppm / ratio 0.0018. Before service I usually find them over 200ppm / ratio 0.004. Permitted legal limit I know is...

I service Baxi Bermuda's, Glowworm's, etc and they are not an issue. Do I like them? No, but only due to their lint arrestors getting blocked and they having an inherent Hugh CO emission even after service. Without a service, their CO can be through the roof. With regard to servicing them, the...

I am very much surprised about the response you are getting. I know there are a lot of RGI's out there that, let's just say, shouldn't be RGI's but surely there are many who can sort your boiler for you. Those units are really not difficult and if they cannot even get the cover off it, then to...

To be honest, I'm not surprised with your experience and more so with their level of expertise. The cover of the gas fire must be removed to access the gas isolation valve. This is a simple task. The isolation valve is a combined control valve that isolates the boiler and the gas fire but also...

Regulation in Ireland is not the issue. Gas in Ireland is very well regulated, at least as much as in most other countries. Room sealed boilers are permitted in every other country also. The issue is maintenance, and poor maintenance can be blamed on some RGI's but also on some homeowners. I get...

I think you are talking about the overflow pipe from your attic. This could be from your feed & expansion tank which may have a faulty ball valve. It may also be from the main cold water storage tank in the attic with the same fault. If you are talking about the pressure relief valve discharge...

A Ferroli, perhaps...

As far as regulations are concerned as long as it is a room sealed (i.e. it takes it air for combustion directly from outside) it is fine. On a personal opinion, I don't like them in bedrooms as proper maintenance will be crucial should something go wrong. Also, when in bedrooms, they are are...

Just make sure each of the 3 zones has thermostatic control over each zone, so if you have your zone heating for 3 hours but it reaches the desired temoerature within say an hour, it will switch off the boiler until the temperature drops below the set temperature. This stops a lot of boiler...

I don't really know of any gas fires that are two sided nor ones that do heating. If gas, then stick with just a fire for room heat. Here's a selection of Gazco. Most have remote control thermostatic control and you should find something to suit all tastes. Gazco are also a very good quality...

I have fitted lots of them and they are excellent, great heat and very controllable. The more you spend on them, the more controllability you get, such as remote control ignition, room thermostat built into the remote control so you set the desired temperature and the flame turns up or down to...

Yes

If you have natural gas, then that would be the better option, but the correct gas stove/gas fire will be the key decision. LPG is a good choice also but will be more expensive to run than natural gas. DFE's (decorative fuel effect) gas fires are the ones to see away from. They will be approx...