Sherlock Holmes has always been one of my favorite fictional characters. I envied how he would notice each detail and use every one of his senses to solve the crime. 

Congratulations to those products on this year’s list! Top Products are based on the number of pageviews on pmmag.com.

In September, Navien invited engineers and reps to learn more about its products and tour its Seotan Factory in South Korea. 

The world's first hydrogen powered domestic boiler was put into operation in Rozenburg, the Netherlands in 2019, noted ECR International.

The SVF 1500-3000, Stainless Vertical Firetube boiler features industry-leading thermal efficiency up to 96.8%, easy installation and maintenance, user-friendly Unity control system and Weil-McLain boiler reliability and longevity. 

The Laars MagnaTherm HTD condensing boiler and volume water heater comes standard with feature-rich functionality, such as full 20:1 turndown on all sizes, Laars Tru Trac O2 trim system with real time, electric fuel-to-air ratio combustion control and the intuitive to use, icon based Laars Linc control system.

The XVers L, the newest hydronic boiler from Raypak, a Rheem company, is built to automatically assess the temperature and adjust to make sure the environment is controlled and comfortable. 

An installer is asked to connect an old (but still working) propane-fueled cast-iron boiler, which was salvaged from another project, to a slab-on-grade floor heating system in a new workshop.

Navien NFC series is available in 175,000 Btu/h and 199,900 Btu/h models, each offering 95% AFUE, 11:1 turndown ratio, PVC venting up to 150’, and residential and commercial warranties.

An installer is asked to pipe two independent zones of high mass floor heating to a conventional gas-fired boiler.