It’s important that homeowners understand that nowadays, there are a few different oil storage solutions available and that all are reliable and offer similar warranties to the homeowners.  All three types have different market prices because of the materials and manufacturing processes in which they are fabricated.  The most affordable oil tanks available on the market are the single wall and double-bottom steel tanks, followed by the polyethylene plastic 2-in-1 tanks and finally the fibreglass tanks. They all have comparable features and benefits; some jurisdictions mandate specific types of oil storage tanks.  Please consult your local oil heat service technician and/or your oil heat provider to get all information about the different oil storage solutions available to you.