Oil Heating

Gas man services will carry out:

  • Oil boiler installations.
  • Oil boiler breakdowns.
  • Oil boiler servicing.
  • Oil tank replacements.
  • Free Estimates. Or Why not take advantage of our quick & easy boiler quote click here.


Having an oil fired boiler serviced regularly can keep it operating at its most efficient. This reduces fuel bills and saves money on costly call-out fees for unexpected breakdowns. OFTEC recommends that oil fired appliances and equipment are serviced at least once a year, or as recommended by the manufacturer. Here at the Gas Man services we can carry this out for you.

Oil Boiler Service

Appliances will be inspected and cleaned. Components will be replaced as required when the boiler is being serviced. If your boiler is not serviced annually, it is at higher risk of breaking down and costing you more money.

Cleaning the boiler provides a chance for Gas Man Services to look for other tell tale signs that parts of the boiler may need replacing, and an opportunity to inspect the combustion chamber for the condition of the material and welds.

Old steel heat exchangers will often leave rust marks, which can give a warning that the boiler will soon need to be replaced. This approach can limit the possibility of water damage occurring and enables replacement work to be planned, rather than having the inconvenience of trying to arrange a boiler replacement at short notice when a heat exchanger unexpectedly fails


In order to ensure the continued efficiency of your oil fired boiler, Gas Man Services will inspect and replace the following:

  • Excessive smoke and partially burnt fuel deposits can cause soot to form within the boiler heat exchanger, restricting the amount of heat that can be transferred into the heating system water. The cleaner the heat exchanger, the more efficient the boiler.
  • Oil nozzles regulate how much oil passes through the burner. The nozzles are consumable items that wear over time, affecting combustion and lowering boiler efficiency. If they are not replaced, they could cause "sooting up" of the heat exchanger due to too much fuel passing through the burner. During the full strip down service the oil nozzle will be replaced.
  • Photocells can glaze over with deposits. Photocells are an important safety feature which detect whether the boiler has lit. If a photocell is dirty it may not be able to detect the burner flame correctly and could cause the boiler to shut down randomly. Boilers frequently switching on and off will be less efficient than those running for longer periods.
  • Electrodes can wear and attract soot and deposits. Electrodes produce a spark to light the fuel. If they are worn or in poor condition the boiler may not light. Again, causing inconvenience, inefficiency and increasing fuel cost.
  • Long term damage can also occur if the boiler is not serviced regularly. During the combustion process, deposits will build up on the internal surfaces of the heat exchanger and the baffles which can decrease boiler efficiency. If left for a number of years, these deposits harden and render it impossible to remove the baffles without destroying them. A replacement baffle will come at a significant cost on top of the routine service charge.
Boiler Repair Dorset, Boiler Servicing Dorset, Gas Engineer Dorset

Oil tank and supply

Gas Man services will visually inspect the oil storage tank and oil supply pipes during the service visit. The tank will be checked for water contamination, filter elements will be cleaned and/or replaced and fittings checked for oil leaks.

Boiler Repair Dorset, Boiler Servicing Dorset, Gas Engineer Dorset

Be aware of carbon monoxide (CO):

This is a highly poisonous substance produced by the incomplete burning of oil.

This happens if an appliance has been incorrectly fitted, badly repaired or poorly maintained. It can also occur if flues, chimneys or vents are blocked.

What is carbon monoxide poisoning?

Carbon monoxide poisoning occurs when you breathe in even small amounts of the gas. When you breathe in carbon monoxide, it gets into your blood stream and prevents your red blood cells from carrying oxygen. Without oxygen, your body tissue and cells die.

Levels that do not kill can cause serious harm to health when breathed in over a long period of time. Long term effects of carbon monoxide poisoning include paralysis and brain damage and even death. Such long term effects occur because many people are unaware of unsafe appliances.


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