Heat pumps - Articles | Plumbing & Mechanical

Two home-owners sitting on a couch, with "Make your house feel this good" and "The switch is on" written above them.

CAHPP and Xpedition Launch New Campaign "If These Walls Could Talk"

The California Heat Pump Partnership (CAHPP), a public-private coalition working to accelerate heat pump awareness and adoption across the state,

Plumbing & Mechanical Editorial Staff

May 13, 2026

The campaign is built around an initiative led by the Building Decarbonization Coalition that targets both homeowners and the contractors who influence their decisions, with the goal of building heat pump familiarity before the emergency moment arrives.

LG Advances in U.S. Department of Energy's Commercial Building HVAC Technology Challenge

LG’s next-generation heat pump rooftop unit passes lab validation.

May 8, 2026

The company will now begin field trials to demonstrate optimized commercial building performance.

Ground-source heat pumps gain traction in high-performance building design

Efficiency gains, code alignment and long-term ROI are driving renewed interest among engineers and contractors.

Rich Anderson CBO

April 15, 2026

According to the U.S. Department of Energy, geothermal heat pumps are among the most efficient HVAC technologies available, capable of significantly reducing building energy consumption.

Maryland State House capitol building view from Bladen street at string, Annapolis MA, USA

Maryland’s Utility RELIEF Act allocates over $72 million for equitable home energy upgrades and updates SEIF, expanding access to heat pumps

New heat pump funding and authorization of Maryland’s Strategic Energy Investment Fund for building electrification aims to lower Marylanders’ energy bills and create jobs.

April 14, 2026

In addition to improving energy affordability and creating clean energy economy jobs in Maryland, the building electrification provisions in the Utility RELIEF Act will also support Maryland’s decarbonization goals to reduce greenhouse gas emissions by 60% in the next five years and attain net-zero emissions by 2045.

Hydronics Workshop | John Siegenthaler

The air-to-water heat pump summit brought contractors, suppliers, and educators together for hydronic technology

Sold-out summit

John Siegenthaler, P.E.

April 3, 2026

The air-to-water heat pump summit was held on March 4th in Burlington, VT, and attended by over 120 people.

Air-to-water heat pump summit, March 4, 2026, Burlington, VT

John Siegenthaler, P.E. will be providing technical training on design and installation of air-to-water heat pumps in both new construction and retrofit applications.

February 16, 2026

Efficiency Vermont is partnering with the Associated Building Contractors of VT/NH to host a full day air-to-water heat pump summit in Burlington Vermont.

Power Ahead Colorado and the Building Decarbonization Coalition launch full-service digital workspace for Colorado heat pump installers

Power Ahead Colorado, a program led by the Denver Regional Council of Governments (DRCOG), launched the Colorado Contractor Hub.

January 14, 2026

The free Colorado Contractor Hub delivers heat pump contractors customer leads, training, tools and funding, incentive information, and other services and resources.

Air Conditioning Condenser Unit Mounted on a Concrete Slab outside of a Suburban Brick Home in Tennessee.

Hydronics Workshop | John Siegenthaler

What’s it capable of? (part 1)

Why accurate performance measurements are essential when evaluating an existing hydronic system for a heat pump.

John Siegenthaler, P.E.

January 9, 2026

Measuring the flow rate through a circuit has always been more of a challenge compared to measuring temperatures. Very few circuits are equipped with permanently installed flow meters.