The 4000W-24 heating unit is installed in the foundation slab or suspended floor, and contains a fan and four water/air-exchangers, with valves that are controlled by 1-4 external electric room thermostats. It is used together with heating unit box 4000A 100/100 (4″/100 mm spiral pipes) or with heating unit box 4000A 50/50 (2″/50 mm plastic pipes)
$3.25 – $629.00Price range: $3.25 through $629.00