Recent content by amcluesent

https://www.ultimatehandyman.co.uk/forum1/download/file.php?id=53323&sid=6ffb8e7cbab12ab8745a989ac80869ce

A Nest would replace the MT10, the Nest HeatLink has output to request central heating from the Combi

If you're looking to save money in heating cold-fill water by the machine's electric element, fill a watering-can with hot water from the tap and pour that into the detergent drawer when the machine is filling.

If you wanted to try and DIY it, you could lock off the valves to each radiator in turn, take outside and flush through with a hose pipe. Tap the metal with a soft mallet to help dislodge deposits. Remount rads and oven valves then rent a power-flush machine and hope the higher pressure from its...

Probably best to get to an professional installer in to have a look. Sounds like whoever installed the Hive was a cowboy

Drop an email to [email protected] (CEO of Trent Water) setting out the issue. The key point to make is you and/or your insurer will be seeking to recoup from Trent Water all your direct and indirect costs due to subsidence or damage otherwise attributable to the leak

The salesman's quoted efficiency of condensing boilers of 95%+ vs open-flue boilers at 60% is based on ideal circumstances. The most relevant being that the condensing boiler can be run with a flow temp of 55°C which usually requires very large rads or ideally underfloor heating. Also that the...

With two bathrooms/showers I'd still consider a Priority Domestic Hot Water (PDHW). Sadly, too many installers can't move-on from S-plan or Y-plan designs! Usually you'll get a longer warranty using the manufactures own controls and you definitely need weather compensation. >I have come to the...

I've ranged rated my 30kW Worcester down to 45% for CH and set flow temp to 55°, the Nest "Time-to-Temperature" is set to allow up to 60 minutes of running to achieve a scheduled temp. As outside temps drop, I'll be assessing if these settings can maintain comfort levels of 21°C in the house.

>a basic TPI algorithm room thermostat< Yes, which I suppose why Opentherm/Weather Comp is now the preferred means to avoid overshooting target temp as the boiler modulates fan speed. Plus devices like Nest are setup to to know if the heating is using rads or under-floor for further optimisation.

A modern boiler will use modulation to avoid short-cycling.

>One question I have is how much more efficient would a modern boiler be compared to the model I have now< Tricky one, but a modern combi would have features such as range rating for the CH, weather compensation/OpenTherm control and auto-modulating pump/fan which might give an additional 15%...

Have you opened the canister to see how much magnetite has been held in the MagnaClean?

My understanding is that combustion of natural gas creates hot steam which why you sometimes see steam clouds from flues. That's wasted energy A condensing boiler passes these flue gases over a heat exchanger which contains the circulating cooler water coming back from the radiators. So long as...

On my Worcester Greenstar CDi classic (30kWh) I've been experimenting with range rating to 50% of capacity for CH and also set the flow temp to about 55°C to (hopefully) encourage condensing. Also set the pump so it steps along with the fan using Map 4 rather than runs at constant pressure. The...