Exchanging your gas boiler with a combi
Exchanging your gas boiler with a combi
A combination gas boiler is a form of condensing heating boiler. The advantage of a combination gas fired boiler is that it can heat up water when needed and for this reason they are very popular.
As they have specific set up requirements it is essential that you have an heating survey conducted before you complete on the purchase. If you use a trained heating installer to conduct a study they will ensure that you comply with the building regulations. If you are exchanging your existing gas fired boiler you will find that you cannot do a straightforward swap as it is now more challenging to install a contemporary condensing boiler.
cooler, heavier exhaust gases are discharged from the combi gas fired boiler flue with less heat they can condense more speedily and result in a visible plume. Surface wetting by the exhaust gases is often seen near the flue outlet, this impact is not limited to your house and can spill over on to neighbouring houses, on occasion people going by your home can be impacted by this output plume.
You could find that your present flue, whilst suitable for a noncondensing heating boiler, is not acceptable for your replacement boiler. To complete the installation you could find that the flue will need to be modified. Also the flue for a condensing heating boiler must not be shared with any non-condensing appliance.
You need to be able to drain away the liquid condensate which will form within the gas boiler.
There are many ways to defeat these fitting difficulties. The advantage of using a trained installer is that they will know of these. You should remember that these one-off set up costs should be setoff against the annual reduced running costs of the re placement condensing gas boiler.
It is not all doom and gloom however and there are options for the fitting. A change in the location of the new gas fired boiler frequently results from the different fitting requirements. Particular illustrations are where a condensing gas boiler is to replace an open flue or back boiler. These are often installed in an internal position away from an external wall.
Most rooms in the home can be used other than the primary living room. Typical illustrations include the loft, sleeping rooms and of course the kitchen.
A gas fired boiler can be installed in the attic as long as the system is sealed. Access to the loft has to be provided through a lower down ladder attached to the attic hatch. The floor has to be boarded from the hatch to the heating boiler location and there has to be sufficient lighting in the loft. These points are called for to facilitate a plumber to maintain and service the boiler.