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. On board, each boiler has the Laars Vari-Prime pump control that seamlessly matches firing rate to boiler pump flow, the company points out. The Laars Linc intuitive control system with color touchscreen has an easy-to-navigate control structure that displays key performance measures, a quick-start option and a USB input for parameter upload, it adds. It easily connects to building automation systems via BACnet, and has many other features, including the ability to cascade as many as 8 units for up to 32 million Btu/h, and a combined 160:1 turndown, Laars notes. Available in six sizes from 1600 to 4000 MBH, Laars MagnaTherm HTD units have stainless steel heat exchangers and deliver AHRI-certified 95% thermal efficiency. Laars.