Biomass Boiler vs Gas Boiler: What Do You Need to Know?

Gas boilers are the most preferred heating system among UK homes; however, they are not the only option. Biomass boilers are another alternative that is renewable and carbon neutral. Their cost of operation is low, and they don't need frequent replacement or boiler fixes. So, which boiler type is the most ideal for your home? We make a thorough comparison of both heating systems in this Biomass Boiler vs. Gas Boiler article.

Differences between Biomass Boilers and Gas Boilers

As the UK works towards achieving its carbon goals, homeowners are being urged to look into renewable heating systems. And biomass boiler is one of the options. You can find another option at iheat. Biomass fuel consists of biological materials like plants and plant-based organisms. A domestic biomass boiler commonly uses wood fuel, supplied as pellets, wood chips, or logs.  Conversely, gas boilers consume natural gas, a fossil fuel that emits carbon into the air when burned. An energy supplier supplies the required quantity of gas directly to the house when needed.

You must be registered with the gas network before a gas boiler can be set up in your home, except you intend to go for an LPG boiler. LPG is another form of gas fuel stored on the property instead of supplied on demand.

Biomass boilers prices vs. conventional boilers prices 

Biomass boiler prices start from around £7,000 (12kW domestic type), enough to supply a four-bedroom house with hot water and heat. A gas boiler of relatively similar size will cost just about $2,500 to install. More oversized biomass boilers that come with auto-feed Hoppers costs as much as $12,000.

Biomass boilers efficiency vs. Conventional boilers efficiency

The efficiency rate of biomass boilers is 89-91% (Angus Orlingo 500 – 92%, Trianco Greenflame – 91%). While the high-profile boilers' efficiency rate is around 88 - 91% (Valiant Ecotec Plus series more than 91%; Baxi Duo-tec HEA 91%); hence, biomass boilers are as good as conventional gas boilers. 

Biomass boilers maintenance vs. conventional boilers maintenance

If you choose to install a biomass boiler, you have to provide it with fuel routinely. For instance, the Baxi Biolflo will require refueling every 3-4 days, while more oversized biomass boilers will only need refueling once in a few weeks. Also, the system will need to be emptied sometimes as the combustion process results in ash accumulation. 

Comparing the biomass boilers size vs. conventional boilers

Biomass boilers have a bigger build than conventional boilers. This is essential to accommodate the possibility of an auto-feed option. For example, the Back Bioflo is 1.2m, while a traditional boiler measures half of that.

Which is the best between the biomass boiler and gas boiler?

If you live in a secluded place, a biomass boiler will probably be best for you. This is because you likely have some experience with storing fuel on the property and hence have the required space.

If you already use a gas boiler at home, it will be more affordable and less disorderly to replace it with a similar system.