1. Check that all flow meters are open. Turn them anti-clockwise a couple of turns from closed2. Switch the programmer for zone 1 so that it is calling for heat, you should see a flame signal.3. There should be no actuators fitted on the manifold, the manifold pump should run and the zone valve should open (if one is fitted).4. The boiler should fire up at this stage and the system should circulate water. Turn the flow meter on all circuits until the plastic indicator is around 1.5 (if using a boiler) or 1 for heat pump systems. The flow meter scale works down, so allowing more flow (like opening a tap) moves the red indictor down. As each are adjusted, some you may have already set may alter slightly. We find that it’s best to alter in small increments.5. Turn the zone 1 room stat up to it’s highest temperature.
Underfloor Heating is a beneficial eco-friendly heating solution that is more efficient and cheaper to run than other forms of heating such as radiators.
It can be difficult to understand what is best for you and what the right price to pay should be. This is where we can help. At Underfloor Heating 1 we aim to find the product to best suit your needs that is particular to your property and at a price you won’t find anywhere else.
Underfloor Heating 1 promise to beat any like for like quote. We always quote with a full itemised and quantified list of materials after obtaining the information specific to your property – not a generic quote-not all companies do this and beware any supplier that doesn’t! We only source products from the most reputable companies, such as Danfoss, Honeywell and Heatmiser. All of our products are from companies based in the UK or mainland Europe.
When using a heat pump to run underfloor heating we recommend that the underfloor heating pipe is laid at 100mm pipe spacing throughout the property. The main objective of having a heat pump is efficiency and installing the pipes at 100mm spacing maximises the efficiency.
Air source heat pump manufacturers’ efficiency data is 7c air temperature and 35C flow temperature. Ground source heat pumps are the same although it is ground temperature and not air temp in the data and this flow temperature is generally only achieved with the pipes at 100mm pipe spacing. The COP (coefficient of performance – how efficient a heat pump is of converting electric into heat) of a heatpump is from these figures and installing the pipes at 200mm spacing would seriously reduce the COP.
If you have received a quote that appears to be cheaper than an UFH1 quote it could have significantly less equipment or equipment of lower quality than ours – for example another company specifying pipe 300mm spacing where we might put 200mm spacing, digital or dial thermostats etc., etc and we would either re-quote to match or point out where the differences are.
We always specify our equipment with a full itemised list to do the job properly without cutting corners or quoting with vague equipment lists and usually find that ‘cheaper’ quotations fall short on equipment and/or quality and invariably the customer ends up having to fork out later for items “......that weren’t included”
Underfloor Heating in Joisted Floors
There are three main types of floor joists:
1. Standard timber joists. Usually 9” x 2” at 400mm centres in homes built since 2000 but often smaller in older homes. Chipboard or planked flooring is usually nailed or screwed to them.
Installing Underfloor Heating –
Option a) Wooden battens are fixed down the lengths of each joist 100mm/75mm from the top of the joist and 75/50mm foil backed insulation (such as Kingspan, Celotex etc.) is fitted in between the joists and supported by the battens. A 25mm gap is needed from the top of the insulation to the top of the joist. The pipes are stapled to the insulation and then, depending on the size of the joists, a sand/cement mix can be fitted to create thermal mass. The biscuit mix adds 20kg/m2 so the suitability of this should be checked with your building surveyor.
The cost of underfloor heating depends on the size of the installation and the individual conditions in your home.
The cost of installing underfloor heating in your home depends on your answers to several questions. Do you have the necessary skills to install the system yourself, or will you require professional installation? How big is the area where the heating system will be installed? What type of system will be installed?
Wet underfloor heating systems, in which hot water produced by your boiler is pumped through pipes laid beneath the floor, are often more expensive to install than dry underfloor heating systems, in which electric wires supply the heat. However, wet systems are more efficient and therefore have lower running costs.
Underfloor heating can be fitted underneath carpeted floors, but there are some factors that you need to take into consideration to work out whether underfloor heating is a good choice if you have carpet.
If your carpet is too thick and insulating, you won’t feel the benefit of the underfloor heating because the heat will not be able to penetrate through into the room. Instead, the heat will be trapped beneath the carpet where it could cause overheating.
Wooden floors have enjoyed a boom in popularity in recent years, with more home owners than ever recognising the advantages of a floor that is easy to clean,durable and attractive. If you are considering installing a heating system underneathyour wooden floor, there are some factors that you should take into account beforeyou go ahead with the installation.
Wood is an insulator, which means that it slows down the transmission of heat produced by the underfloor heating system, reducing the system’s efficiency. However, wood is less insulating than other flooring types such as carpet. The heat transmission characteristics of the wood can also be beneficial in that wood holds onto heat for a long time after the underfloor heating system is turned off, which means that the room will be kept warmer for longer by the underfloor heating system. The floor will feel pleasantly warm but not hot underfoot.
Firstly you need to determine the size of the area to be heated and what pipe centres you need to install at – this will be determined by the heat source, the room type and possibly the floor covering. In Conservatories, wet rooms and areas with large glazed parts we recommend installing the pipes at 100mm spacing to compensate for the higher heat loss. If using an air or ground source heat pump, the pipes should be at 100mm regardless of the room type. A boiler based system in a standard solid construction room would usually have pipe installed at 200mm spacing.
Underfloor heating could hardly be described as a new concept when the original concept can be traced back to the Neolithic period.
The inhabitants dug trenches under their floors and used the smoke to heat the floor stones, a method that is unlikely to get past today’s building regulations.
This original idea however has evolved into the two main systems used in present times, which use fluid filled pipes or electrical cables and mats.