Figure 1 shows a hydronic system that’s intended to supply four panel radiators, each with their own thermostatic radiator valve and an indirect water heater from a gas-fired sectional cast-iron boiler. The system is designed using primary/secondary piping. The primary circulator operates whenever the space heating load or the indirect water heater call for heat.
The upward pricing trend that carried into the new year is continuing through February and into March, with a steady stream of plumbing, hydronic, HVAC and PVF manufacturers announcing increases. While many adjustments are landing in the low- to mid-single-digit range, several manufacturers are implementing category-specific or “various” increases, with select product lines moving higher.
High efficiency units are highly sought after in the commercial water heating industry and can lessen the environmental footprint while still delivering great hot water output.
According to recent research by Google, 70% of customers now take over a day to decide on which company to go to for both plumbing and HVAC jobs – even worse, 40% take up to a whole week. That means by not following up, you could be missing out on thousands in lost revenue.
If emergency tariffs are ultimately invalidated and refunds issued, the headline may suggest broad financial relief. However, plumbing contractors and specifying engineers should temper expectations.
Panel radiators operated at low water temperatures, and with minimal fins attached to the rear of the water plate, can emit upwards of 50% of their total output as radiant heat.
The training provides practical guidance on the proper installation of copper service lines, including techniques, materials science, and industry-recognized best practices.
February 24, 2026
These sessions are designed to support crew or teams of all sizes, from small systems planning their first project to larger agencies coordinating comprehensive replacement programs.
Why continuity, vertical integration, and specification trust matter more than disruption in building industrial valve brands that endure across generations