Knowledge Base

Geothermal Heat Pumps in Real Homes: What the Research Shows
Trade accounts
A contractor brief on measured ground-source heat pump performance: real-home COPs, cold-weather comparisons with air-source, oil-boiler retrofits, loop life, antifreeze and fusion joints, with every study linked. For trade account holders. Read more...
Samsung SNET Service Tool: Wiring and Drivers
How to connect a USB to RS485 service tool to a Samsung system for SNET Pro: wiring to F1/F2 and where to get the drivers. Read more...
Samsung VRF (DVM S) Error Codes and Fixes
Common Samsung DVM S and VRF error codes (E101, E152, E163, E201, E436 and more), what each one means and how to fix it. Read more...