Do you install Nest Smart Thermostat and Nest smoke + CO alarms, what are the benefit of having them in your house?
Yes we do, there a numbers of blog articles on how it can benefit your home and make your lives that little bit easier. , ,

What is a condensing boiler?
A condensing boiler is a boiler that recovers the heat that would otherwise be wasted and uses it to improve the boiler’s heating efficiency. There are 2 types of high-efficiency condensing boiler:

  • System boiler: heats your hot water through a hot water cylinder
  • Combination (combi) boiler: gives you instant hot water without the need for a cylinder

Each type delivers all the benefits of high-efficiency technology. Here are a few examples and guidelines to help you identify the type of condensing boiler most likely suited to your needs:

  • I live in a flat or bungalow with little or no roof space – COMBI BOILER
  • I want to convert my loft – SYSTEM BOILER
  • My home has more than 2 bathrooms – SYSTEM BOILER
  • My main water pressure is low – SYSTEM BOILER
  • I need to have hot water available on demand without waiting for it to heat up – COMBI BOILER

What is a combi boiler?
The high efficiency condensing combi or combination boiler combines both a conventional boiler for radiators and an independent water heater in one compact unit, eliminating the need for a hot water cylinder and cold water storage cistern. With a combi boiler hot water is always available instantly and for as long as you need it. Additional benefits of having a combi boiler include significant saving on your gas bills and the fact that your hot water comes from the mains pressure so you can enjoy showering without needing pump which can be noisy.

What is a system boiler?
A system boiler works on the principle of stored hot water. It provides heat for your heating system while being able to heat a hot water cylinder. This guarantees simultaneous supply of hot water to all outlets. These type of boilers work with both vented and unvented how water cylinders. System boilers operate on a sealed system like the combination boiler. As the system is not affected by mains water pressure, they can operate in areas where combi boilers cannot (like lofts). System boilers are usually compact as all the major components like the pump and the diverter valve are built into the boiler. A system boiler is a great choice for a larger home or family with hot water needs that can’t be met by a combi boiler. You will need a tank in the airing cupboard, though.

Which boiler manufacturer do you recommend?
LHPS can install any type of boilers. We will assess your individual needs and advise on a suitable boiler. There are several very good central heating boiler manufacturers in the market. We usually recommend A-rated Baxi boilers for their efficiency or Worcester Bosch and Valliant boilers which are equally good in terms of performance and reliability.

What is the Gas Safe Register?
Gas Safe Register is the official Great Britain and Isle of Man registration scheme for installers and maintenance engineers dealing with natural gas appliances, which replaces the previous system run by CORGI until 1st April 2009. By law, anyone carrying out work on gas installations and appliances in your home must be on the Gas Safe Register. LHPS is a registered Gas Safe installer.

How do I know if I have a low pressure (or unvented) system?
If you have a cold water storage cistern in the loft and a hot water cylinder in an airing cupboard, then you have a typical gravity fed system in your property. Your water pressure is determined by the height of your cold water storage cistern in relation to the appliance outlet. For example, a weak shower could be due to low water pressure, but in an ideal world this could be solved by raising the height of the storage cistern. However, this isn’t always possible and pumps can be used to boost the pressure.

What are thermostatic radiator valves (TRVs)?
Thermostatic radiator valves control the temperature of an individual room or area. They are fitted to your radiators and have an internal thermostat to enable temperature control to individual rooms in your home.

What is a programmable room thermostat and how does it work?
Programmable room thermostats switch the heating system on and off automatically several times a day, or night, to suit regular household needs. It works by sensing the air temperature, switching on the heating when the air temperature falls below the thermostat setting, and switching it off once this set temperature has been reached. Programmable room thermostats are wireless and can be programmed to suit your lifestyle needs.

Why is my radiator cold at the top and hot at the bottom?
This usually means there is air trapped at the top of your radiator and it is stopping any more hot water filling the radiator. To resolve this problem you can bleed the radiator to release the air by opening the bleed nipple (a small square peg at the top of the radiator, usually protected by a round cast in the radiator body) and allowing the air to hiss out. Hold a cloth close to the bleed nipple and when water starts to come out the air should have gone. If this does not help or the problem reoccurs we suggest that you have your central heating checked by an LHPS heating engineer in case there are any underlying system problems.

Why is my radiator hotter at the top than at the bottom?
Assuming the radiator has reached operating temperature, this usually means there is a build up of sludge and rust at the bottom of your radiator and this displaces any water leaving the bottom of the radiator cold. In this case we advise that you have your heating system power flushed by LHPS.

Why are my radiators hot downstairs and cold upstairs?
This usually means that the feed and expansion tank in your loft has run dry which can indicate a problem with the ball valve. This needs addressing quickly and can be resolved by replacing the ball valve.

Why are my radiators cold downstairs and hot upstairs?
This could indicate a faulty central heating pump which should be checked by an LHPS heating engineer.

What is power flushing?
Power flushing is a process by which heating systems are cleansed from sludge using chemicals with a power flushing pump. The process makes no mess and causes minimal disturbance to your property as no radiators need to be removed. At the end of the power flushing process, the system contains fresh clean water.

What is an emersion heater?
An emersion heater is an electric element which screws into the hot water tank. It is wired to the mains electrical supply via an isolating switch, a thermostat to control the temperature, and sometimes a timer which enables you to set the times you wish to have the water heated. Using a timer, together with a well insulated tank, it is possible to heat the water during the night, when electricity rates are cheaper, and use it during the day.

How do photovoltaic systems work?
Light hits the photovoltaic cells and is converted to electricity.  An inverter converts this electricity from direct to alternating current, for use in the home.  When the system is producing more power than is needed the excess is exported to the National Grid.  At night, or at any time where the system is not producing enough power to meet all the household’s requirement power is imported from the grid as normal.

Does a PV system need batteries?
No, the system is connected to the national grid, so at night or whenever the system is not generating enough energy, electricity is bought from a utility company as usual.  Any excess electricity generated during the day is sold back to the National Grid. Therefore, there is no need to store electricity and no need for batteries.

Will we continue to have power during a power cut?
No. Any grid connected PV system is designed to switch off in the event of a power cut. This is a legal requirement and is a safety feature designed to stop electricity leaking on to the National Grid and harming workmen trying to restore the fault.

How many panels will I need?
According to the Energy Saving Trust, the average 3 bedroom house consumes 3,500 units of electricity (kWh) a year. However, every household is different, so it is best to look back over your old bills or contact your supplier to find out how much electricity your family uses a year. LHPS can then design a system that best suits your needs.

What about the weather in the UK?
Surprisingly, this is not too much of a problem! PV systems depend on the intensity of light, not direct sunlight. So even in more northerly and cloudier countries such as the UK, there is ample diffuse light when it’s overcast for the system to produce electricity. Solar panels are actually happy in cold climates and for example on a sunny (but cold) day in January it can produce the same amount of electricity per sunlight hours as in July.

Can I have under floor heating installed in my existing home?
Each project is different, but in most cases, yes you can and at LHPS we are always willing to discuss any queries you may have regarding installing underfloor heating in your home.

Can under floor heating connect to any heating system?
Yes. Underfloor heating can connect to any heat source, electric, gas, oil, boiler, solar or ground source heat pump.

Can I use any floor covering with my under floor Heating?
Any floor covering can be laid but stone or tile floor are the best at transferring the heat. Carpets need to be below 1.5 TOG.

How do I control my under floor heating?
Under floor heating is controlled by ether programmable room stats in all the rooms or by room stats in every room and an overall time control (programmable room stat)

Where can I leave a review on the service I have received from you? I would like to write a positive feedback, where can I do that?
Thank you, we always like to hear back from people who we have serviced their property. To leave a review you can do it on a numbers of pages: Checkatrader, Facebook, Twitter and Which Trusted Trader.

Where we cannot resolve any complaints using our own complaints procedure, as a Which? Trusted trader we use Ombudsman Services Ltd for dispute resolution. In the unlikely event of a complaint arising and you wish to refer the complaint to them please contact Which? Trusted traders in the first instance on 0117 981 2929.