Entry # 48
Advanced Hydronics LLC
Brief overview of the project
Sol with Advanced Hydronics in Telluride, Colo. was hired to replace a cast iron boiler system with a 4-way mixing valve for a modern alternative. He used a Caleffi thermostatic mixing valve in his new system to protect the radiant zones on the lower level as well as a DISCAL air separator for air elimination. He used a Lochinvar WHN085 high efficiency boiler and stainless steel pumps to protect the components from the non-oxygen barrier tube.
The system heats the building with baseboard and radiant floors and also provides DHW with a 50 gallon indirect tank.
This is a retrofit installation. Using the existing non-oxygen barrier tubing added difficulty to the retrofit, so we added a DISCAL air sep to keep air out.
The system is performing well now and is protecting the low temperature zones with a thermostatic mixing valve instead of a motorized 4-way valve. The energy efficiency is MUCH better than the old cast iron boiler, especially at 9,000 feet!