FAQs

Some common questions we get here at Gasworks!

Combi boiler

A combination (or combi) boiler is the most commonly available in the UK. Its small and simple design takes up minimal space, whilst supplying hot water directly to your taps or radiators without the need for a bulky storage tank. It provides hot water on demand meaning you  pay only for what you use. The main advantages of a combi boiler are energy-efficiency, and affordable installation process.

Conventional boiler

A conventional boiler is also known as a regular or heat only boiler. They are normally found in older homes, however, they can still be convenient for modern buildings, depending on the demand for hot water in that home. Conventional boilers heat your home through a separate water cylinder that is usually found in the loft. They’re are great option if your area has an issue with low water pressure.

System boiler

A system boiler obtains water directly from the mains. It uses a large tank of stored heated water, so it’s possible to use multiple taps at the same time without that dreaded reduction in pressure. This is ideal if your home has more than one bathroom or multiple people using water at the same time. Although it uses less space than a conventional boiler system, it’s more complicated and needs more space than a combi. System boilers also need to be well insulated to make sure that the water remains heated within it.

The boiler size you require in your home is determined by the number of radiators and bathrooms in your, as well as your overall water usage. The boiler output is measured in kW (kilowatts) and in general, the higher the number of kW, the more powerful it will be. Most boilers tend to range between 24kW to 42kW.

When boilers are left inactive for a period of time (like the summer), there is a higher probability of seizing up. Regularly turning on the heating is an excellent way to prevent this from happening. This is especially important during the winter when temperatures can reach below zero, causing the pipes surrounding the boiler to freeze up if it isn’t turned on. If this happens, it can cause the boiler to cut out and require repair –  a cost that could have been avoided.  We recommend having your boiler serviced once a year, check out our Service page.

The most common cause of that dreaded ‘kettling’ noise in your boiler is a build-up of limescale from hard water. This mineral builds up within the heat exchanger, thus restricting the flow of water. In turn, this causes the water that is in the heat exchanger to boil and evaporate into steam which expands which is the kettling noise that you hear. There are a few things that can resolve it including replacing the heat exchanger, a power flush of the system or adding inhibitor to the system. The best solution will be determined by a qualified Gasworks engineer upon an inspection

Gas leaking into a house is very dangerous. If you smell any gas in or around your property, it might not be easy to detect where leak could be coming from exactly. However, this is something you need to get checked without any delay whatsoever. Gas leaking into the house can result in an extreme fire hazard and must be inspected and repaired immediately. It is vital you take precautionary measures whilst waiting for the gas safety engineers to arrive and resolve the issue such as turning off the valve on the gas meter on your property while you are waiting for us to arrive at your location.  When you call us we will advise on all precautionary measures.

Low water pressure is something that many households have to deal with and endure and there are various reasons for this. Sometimes it could be because the hot water unit is functioning incorrectly and in other instances, sediment or rust built up at the bottom of the hot water tank or pipe leading to the showers and taps can also result in low hot water pressure. If the distance between your hot water tank and the taps and showers is lengthy, it will also impact the pressure.  It could be you have the wrong type of central heating system for your home, either way – Gasworks can advise and resolve your low water pressure issue and get you those power showers you so desire.

Turn the heating on once a month

Turning the heating on in the middle of August probably seems counter-intuitive, but most boiler problems we encounter rear their ugly heads in the autumn when people turn their heating back on after being idle throughout the summer months. By just switching it on for 10 minutes or so once a month in the summer you can help keep everything working properly and prevent it seizing up in September. Do it!

Turn the TRVs up

Once the heating is off completely, turn them up to maximum. This will help prevent the internal pins sticking to the seat of the valve while turned off.

Get the boiler serviced

Summer is the absolute best time to get the boiler serviced.  It’s much less disruptive plus if you do need any major work doing, it won’t be a hardship to manage without heating whilst it’s being done. It will also provide the ultimate health check after working hard all winter in preparation for the forthcoming one. Be proactive and get this done in the summer.

This could be an indication that the central heating system has sludge present in it. This causes your radiators to not heat up properly and/or experience cold spots (eg. they are often cold at the top and warm at the bottom). A good old power flush service is usually the best way to resolve this. 

It’s fairly easy to tell when a radiator needs bleeding as the top section will be a lot colder than the bottom section, or in more severe cases the entire radiator will stay cold when the heating system is turned on. This occurs because trapped air displaces the hot water that normally heats the radiator.

If your home has two floors you should start the process by bleeding the downstairs radiators first.  It’s also advisable to start with the radiator which is the most farthest away from the boiler.  Once you’ve bled all the downstairs radiators (farthest to nearest to boiler) you can then move on to the upstairs, again beginning with the radiator which is farthest from your boiler.

Don’t forget to ensure the central heating system switched off before you start the process of bleeding any radiators!

If you are struggling with water pressure in your shower then perhaps an unvented hot water system will solve this without having to install a noisy pump. It’s also the best system if you have a busy family home that requires various taps around the home to be on simultaneously. An unvented cylinder will support two or more bathrooms and you will feel very little change in the water pressure when you have various taps running – unlike their conventional counterparts where you can often be left with a mere trickle of water! The unvented hot water system is highly recommended for large and busy homes where you will really notice the benefit.

Yes, of course we can. Gasworks knows that guidance is continually changing with local lockdowns, tier 3 and 4 lockdowns, and national lockdowns. We can confirm that we are authorised to provide services in your home under any of these restrictions. If that changes at any point, we will update this page accordingly.

If you cannot easily access your stop tap, or you can but it’s difficult to turn – then one solution is to install a Sure Stop which is a remote stop tap that can be installed in an accessible area with a simple switch rather than a difficult turn.

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Please Feel Free to Call Us

It’s always best to talk, so don’t be shy. If you have any questions and queries we are only happy to help with no obligation whatsoever.

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