Glycol Chiller BTU Sizing Calculator

Get the exact chiller capacity your draft system needs, in BTU per hour, from your own faucet count and trunk line, not a rule of thumb.

Size by BTU Load, Not Length of Run

Every draft system puts its own BTU (British Thermal Unit) load on the glycol chiller. That load comes from faucet count, trunk line length, tube size and dispense temperature, not from run length alone.

Undersize the chiller and the compressor overworks, wears out early, and pours warm beer. Oversize it and you pay for cooling you'll never use. Pick your region and tube size below, using BeverageCraft's own trunk line specs for the USA and Canada, and the calculator runs the numbers for you.

Recommended Trunk Line for Your Run Length

A starting point before you calculate. Longer runs lose more heat, which is why the calculator uses your trunk line's actual BTU/ft, not length alone.

System Run Length Recommended Trunk Line
Up to 50 ft 1/4" trunk line
Up to 125 ft 5/16" trunk line
Up to 750 ft 3/8" trunk line

Pick your region and trunk line below, enter your system details, and get your BTU/hr in seconds.

icon-pdf.png BTU Calculator Worksheet

Determine the correct chiller capacity for your long draw draft beer system.

Sizing Formula
Required BTU/hr =[(Faucets × 100) + (Trunk Length × BTU/ft) + Base Load] × Safety Factor
1 System Parameters
2 Select BeverageCraft Trunkline
Ships From / Available In
US USA
Extruded jacket - TRE series
CA Canada
Taped & Duoflex - TRT series
3/8″
product tube
5/16″
product tube
1/4″
product tube
Chiller Sizing Result
Selected Trunkline
Glycol Chiller

Select a trunkline, then click Calculate.