Hi, I have a log burner and oil fired boiler feeding into a 'dunsley' neutralizer tank. The system (gravity fed) has worked fine for a number of years, except that it can take 20 to 30 minutes for the rads to get hot first thing in the morning and burns a lot of oil in the process.
I am thinking...
We are installing solar power irrigation systems for smallholding farmers in Rural Ghana,
We have 12V DC 0.18kW (max 20A) pumps, there only power source will be a voltage varying from 15-20V coming from solar panels.
The boreholes are narrow, therefore is not much room for a float switch...
We are installing solar power irrigation systems for smallholding farmers in Rural Ghana,
We have 12V DC 0.18kW (max 20A) pumps, there only power source will be a voltage varying from 15-20V coming from solar panels.
The boreholes are narrow, therefore is not much room for a float switch,
The...
Hi
Has anyone got any experience of these. I especially need to know how noisy they are from practical experience, not from Db figures which I don't understand. Also how reliable?
It will most likely be an 8KW model to run just the UFH only which is set at around 35 C.
They are cheap, maybe too...
Hi everyone, this is my first post. I've recently purchased a home where the prior owners have had some sub-standard work done in the past.
The pipework in the photos is the hot water feed from the solar panels down to the hot water tank. It looks like the copper pipe has been routed quite...
With all this talk about potentially switching from gas to hydrogen or even blending some hydrogen into the gas, does anyone know how this affects the dew point of the products of combustion? With natural gas I think it starts to condense around 57C or so, so the return temperature needs to be...
Hi all, my parents have had an air source heat pump installed a couple of years ago and have recently started undergoing refurbishing the house and have had several radiators removed and repositioned, can anyone help with regards to how to top up the system as I know that it has to have a glycol...
Currently got a problem with the Daikin unit. It has both Solar and Air Source heatpump integrated and shows no fault codes. The hot water is heating fine and the unit shows its heating the radiators but they don't become hot. Not sure what to look at. This unit was imported from Belgium so...
Evening all, I have a customer that is looking to upgrade their current system. Typically I gave them a wealth of installation options last time but they didn’t think they’d change too much.
5 years down the line now they find themselves with an old old boiler that is in need of upgrade and a...
Just wondering if anyone has even seen an issue with the pressure gradually increasing on a closed loop system where there is no fill loop attached. I'm seeing this issue on a gshp and whats more unusual is its on the cooling side. If it was on the heating side you could put it down to expansion...
Hi,
I have a question about my s plan heating. I have a Worcester 35cdi erp boiler connected to 2 heating loops and an unvented indirect cylinder via 3 switch values. If I have the radiator heating on and water heating on the system doesn’t close the heating or water switch values. So doesn’t...
Interested on thoughts on this (I've also posted on another forum but thought this might be a better place to ask);
Long time lurker, have gleamed some great knowledge from this site, finally signed up as I cant find an exact answer to the below. I'm not a heating engineer, but an electrical...
Hello,
We were due to have an air source heat pump installed on a grant scheme on Monday, with radiator size upgrade, but retrofitting using the existing pipework.
The calculations have been done to show it's viable etc...
However their engineer has just (!!) looked at the photos taken by the...
https://www.telegraph.co.uk/news/2023/05/12/the-heat-pump-farce-has-finally-been-exposed/?li_source=LI&li_medium=liftigniter-rhr
I realise not many have a sub to Telegraph (neither do I) but this is the article in full. As for the statement by BG, I haven't corroborated it but it seems an odd...
Hello all,
I hope you can help, I don't know any plumbers and just wondered about an idea of mine, it might not be do able for good reason!
I built a 6 x 3m outbuilding a few months ago for myself in the garden, me and wife wanted an office to work in when needed, mainly her (labourer). This...
Hi, Our church is consdering replacing our old gas boilers with modern condensing ones. We would like a hybrid system involving the use of an ASHP. Two of the contractors that have supplied quotes for the work have suggested that we wait for a while on the ASHP as the prices are falling...
In my new high efficiency house, I will have UFH with an Air to Water (A2W). Heat pump Monobloc, but for extra cooling on hot days I think extra air cooling with FCUs is needed:
Should I use a secondary Air (to coolant) to Air system, or stick with just the Air to Water system to also drive my...
Has anyone installed / worked with air-to-air heat pumps?
I wonder if their running cost is also high?
There’s no information on running cost and even the people handling the funding pots for Air source heat pumps, are not aware of the costing.
I'm getting so sick of the media and tories plugging ashp's like they are the solution to all our heating needs.
Latest news today, £5k grant towards the cost of replacing a gas boiler with an ashp. What a joke.
Every ashp system I've worked on and installed runs the heating at 40 degrees...
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