Combi Boiler Installation

If your home has the right type and right amount of insulation than the combi boiler will be able to heat it efficiently and with very little problems. These boilers are great to use in smaller homes and apartments and are compact enough to fit almost anywhere. They provide both central and localized heating and do not require hot water storage like most systems.

Trying to find the right unit to use in your home can be a difficult decision to make – but knowing how to install it can be even worse. Luckily these systems are much easier to work with. They are smaller and do not have as many parts that you have to connect into the home.

  • Know where the boiler is supposed to be placed inside of the home. It should be a place where the exhaust gases can be safely expelled from the boiler and into the air without any type of combustion. The terminal must not have anything in its way or be around low hanging ceilings.
  • Building codes specify that it must have 1300 millimeters in height, 325 millimeters in depth, and 465 millimeters in width of space all around it. You can use chalk or pencil to mark these measurements so that everything is more accurate.
  • Place the radiators underneath windows. They must be no less than 100 millimeters from the floor and 150 millimeters below the windows. This will help them to heat the area efficiently. Each side of the radiator should have 75 millimeters in space for valve clearance.
  • Now find the right sized pipes and routes. The pipes must be away from doorways and have no obstructions in its way. It is often easier and more practical to place them beneath the floorboards. Create a route down to the ground floor radiators and map out the route that the other pipes will use when branching off to the upper levels.
  • The main flow and return pipes should be parallel to each other. Before you finish installing them make sure that each one has been fitted to extend from the flow pipe to the side of each radiator. There must be enough room for the air vent set over each vertical rise.
  • Once you have installed the pipes you will need to fit the radiator tail valve into the tapings. Use a type of thread seal to secure them and place the thermostatic radiator on/off valves on the flow into the radiator. Use a pencil to mark the flow and insert the air vent plug. Connect the radiator valves and lock shield and attach the cold water inlet from the rising main extending it back to the boiler. It is best to use a 15 millimeter copper pipe to link the boiler to the cold water supply line.
  • Adding the gas supply can be highly dangerous. That is why you must contact a registered fitter or boiler contractor to connect it for you.