Why modern boiler designs can prevent expensive heating bills

How to Choose the Most Efficient Boiler | This Old House · 5:06 · Video: This Old House · Watch at the source

In short: This video demonstrates how upgrading to a state-of-the-art boiler can significantly reduce high heating costs. Experts show how newer designs prevent sludge buildup in heat exchangers, ensuring long-term efficiency for remodeled homes.

In an Arlington home facing heating bills in the thousands, Richard Trethewey and plumber Kevin Bilo install a modern condensing boiler to improve efficiency. The video highlights how older models often suffer from sludge clogging the burner parts and heat exchanger.

The new system utilizes a design that eliminates places for sludge to collect. The installation involves venting flue gas through a plastic pipe to the roof and connecting supply and return lines to pumps, manifolds, and mixing valves to power radiators and radiant floor heat.

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