Domestic Hot Water (general) Archives

FAQs on HPWHs

Even though heat-pump water heaters have been available for over a decade, there’s still confusion about their efficiency, cost, sizing, and more.

Install ball valves where they're easily accessible for emergency plumbing shutoffs where and when you need them

Building Science

Dehumidification is listed as a selling point for HPWHs but are they actually effective at lowering humidity?

Best Practices

Learn about filtration system types and formulations, disinfection, and how to know whether your water needs treatment

To ensure clean, safe water from your faucets, it must be tested and monitored regularly—just like many other components that go into a healthy home

BS* + Beer

No matter how it arrives at the tap, water is vulnerable to contamination and requires our vigilance to ensure it is safe

Q&A Spotlight

What’s the best back-up option for a big family that always runs out of hot water?

Building Science

A DIY engineered hot water system uses a hybrid water heater in heat pump–only mode with a high-efficiency boiler and indirect heater

Some feedback from the field regarding the SANCO2 HPWH, a newer option for pros spec'ing high-performance mechanical equipment

BS* + Beer

Hot water distribution expert Gary Klein explains five ways to reduce the time people wait for hot water to reach the faucets