You can heat your home without heating the planet
The most effective way is the Heat Pump which allows you to generate heat and hot water all year round using the energy in the air around you. The more affordable is the Air Source Heat Pump, and the alternative is a Ground Source Heat Pump. Both work by condensing and heating water particles, and pushing them around a flow system which heats your home.
Heat pumps allow you to harness a sustainable energy source to deliver low-cost heating and hot water all year round. Correctly specified and installed heat pumps provide >3kW of heat for every 1 kW of electricity that is used to power the pump*. Key to a heat pump running in an environmentally way is the generation method for the electricity used to run it, changing to a renewable energy provider such as Good Energy ensures you are encouraging renewable generation and running your house from renewable energy in a way that gas or oil boiler can never achieve.
*We achieve 4.5/1 ratios in many locations (Ratios are often shown as a SCOP factor (Seasonal coefficient of performance) ie: a SCOP of 4.5.
If you are already a solar power user, there are some additional technologies you can utilise for heating, such as solar immersion controllers.
You can even get paid for being green through the Renewable Heat Incentive