It's good to see one of the six ideas being: 'Consider an alternative heat source', using an image of the Quiet Mark certified Vaillant flexoTHERM Ground Source Heat Pump.
As the piece states:
"Installing renewable heating rather than relying on the grid will help reduce your carbon footprint and protect you from future fuel price rises," says Jonathan Rolande, Founder of House Buy Fast. "Air- and ground-source heat pumps are increasingly popular, as, instead of burning fossil fuels, they use naturally occurring heat in the air or ground to generate power and heat your home. They need an electricity source to work but, when used efficiently, can cost less to run than some traditional heating systems. It's worth noting that the cost of renewable technology is expected to drop in the future and there are grants to help now. The Boiler Upgrade Scheme runs until 2025 and offers grants of £5,000 or £6,000 for heat pumps and biomass boilers."