Those who choose to install LPG boilers will also need to install tanks to store the liquified gas. These tanks vary in size, and it’s possible to purchase them in very large capacities. If you use your LPG boiler for heating only, you may only need to fill it once per year depending on the size. Conversely, if you use it for heating your water, you may need to have your tank filled more often. Compare free quotes at Trusted Boilers.