The new MagnaTherm HTD series of condensing boilers and volume water heaters boasts real-time O2 trim compensation that maintains ideal air-to-fuel ratios, full 20:1 turndown on all sizes to match varying load profiles and the Laars Linc icon-driven control system.
Since its inception in 1954, more than 62,000 engineers, contractors and other hydronic HVAC and plumbing professionals have been educated at the Little Red Schoolhouse.
We are proud to present the fourth of five eBooks specifically for the hydronics market. Brought to you by Plumbing & Mechanical, PM Engineer and Supply House Times, this FREE eBook is a collection of columns and articles from John Siegenthaler, a well-respected hydronics expert.