A Virginia retrofit pairs propane and electric to eliminate resistance heat, cut energy costs, and deliver consistent comfort in winter conditions. Ther Rinnai tankless unit being installed. AFTON, VA ...

In a December 2014 Plumbing & Mechanical Hydronics Workshop column, we discussed the benefits of dual-fuel systems that combine a geothermal water-to-water heat pump with a mod/con boiler. The boiler ...

Hundreds of thousands of UK homes have had boiler 'upgrades' fitted which, instead of saving them money as promised, rack up energy bills by hundreds of pounds. This is Money has learned that ...

October 1, 2006 When we saw the technology behind this inventive line of hot water circulation pumps we just had to give it a mention. Having to wait for hot water at the faucet is inconvenient at ...

We recently completed a project with a client who operates in the marine sector. They had a floating offshore platform with a boiler which incorporates an economiser with two hot water circulating ...

Heat pumps are increasingly used for domestic hot water in Europe due to their efficiency and compatibility with solar power, but their lower operating temperatures can create conditions where ...