Print this page as PDF

Send this page via e-mail

Add it to Favorites

Share OSO Hotwater on Twitter

Share OSO Hotwater on Facebook

Share this page with others

Gas / Electric / Oil Boilers

Gas and electric boilers are high temperature energy sources, meaning that the efficiency is (more or less) independent of the incoming temperature.

As with other fossil fuels, the burning of gas creates CO2 emissions which contribute to global warming. Thus, the use of renewable energy in domestic installations will be an environmental improvement. However, switching from gas to electric heating may result in substantially larger global emissions of climate gases. This is because many European electricity grids, including the UK is supplied from older, less efficient coal/ gas /oil fired power stations. As Europe invests more in wind farms, hydro electric and other renewable power stations, the carbon impact of electricity generation and use will diminish. However the pace of change is slow, and the current situation is likely to continue for many more years

Gas boilers provide both comfort and improved heating economy. You get plenty of tap water which is heated quickly. Water under floor heating and radiators ensure a comfortable indoor climate. A gas boiler can cover 100% of the need for heating in a house.

 

Gas boilers are more compact than other boilers. Condensing gas boilers usually measure 50 cm in the width and 47 cm in the depth and can be wall mounted. Non-condensing gas boilers are even smaller (45 x 38). Whilst most boilers operating in the UK are the non-condensing type, the UK leads the way internationally by being the first country to insist on condensing boiler efficiency in virtually all new installations.

Gas boilers can be modulated to a high degree, meaning that the boiler automatically adjusts its degree of performance by the temperature need. This ensures a more stable operation and a lower heat loss, thus a higher COP and also a cleaner combustion.

Mains gas boilers


Mains gas is historically the cheapest fuel for central heating in the UK and continues to be so, despite recent increases in energy prices. Long term predictions for mains gas prices are that the fuel will remain highly cost effective for at least 10-15 years. UK regulations demanding high efficiency condensing type boilers give further persuasion to the cost effectiveness of this fuel source.

 

Oil boilers


Gas boilers will provide 100% of the heating load of a property and will modulate to reduce usage when demand is lower. Small properties will often use a combination boiler where no separate water heater is required, whereas medium to large properties with multi outlets for hot water will require a system boiler that provides space heating and heat to an indirect water heater.

Oil fired central heating has gone from being one of the cheapest forms of central heating to one of the most expensive in the last decade. The volatility in the international price of oil has caused many oil users to research alternative heat sources.

Oil has typically been used in more rural properties where mains gas is not available. Oil boilers will provide 100% of the heating load of a property and will modulate to reduce usage when demand is lower. Small properties will often use a combination boiler where no separate water heater is required, whereas medium to large properties with multi outlets for hot water will require a system boiler that provides space heating and heat to an indirect water heater.

Solar Collectors
Biofuel