Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws
Go for Biomass, get capital paid back via the RHI, and save a fortune on oil (I'm biased though 🙂 )
Reply to the thread, titled "Large Oil Boiler Brand?" which is posted in Boiler Advice Forum on Plumbers Forums.
We recommend City Plumbing Supplies, BES, and Plumbing Superstore for all plumbing supplies.