Radiant Heating System Expansion Tanks

Water Worker radiant heating system expansion tanks are offered in 2 and 4.4 gallons sizes, are manufactured in the USA, have the highest quality standards and offer a 5 year warranty.
Features and Benefits:

  • Specifically designed for high-efficiency radiant systems
  • Plastic liner compatible with barrier and non-barrier systems
  • Effectively controls system pressure
  • Corrosion resistant connection
  • Heavy duty diaphragm for extended life
  • Air-tight air cushion — factory pre-charged to 12 psi
  • Maximum working pressure: 100 psig
  • Maximum operating temperature: 200°F


Click for Comparison Chart

Radiant Heating System Expansion Tanks
Model Description UPC WT L W H Qty
RE2R 2 Gal Tank 8 8.5 8.5 13 1
RE5R 4.4 Gal Tank w/o Valve 9 11.5 11.5 15 1


Make sure to select the tank size suited to your current heating system.
Boiler BTU Rating Minimum Tank Volume Water Worker® Model
25,000 to 75,000 2 Gallons RE2R
75,000 to 150,000 4.4 Gallons RE5R