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Cold Room Heat Load — sized to ASHRAE

Tool · 01 of 07
Step 1

Pick an application

We'll set typical defaults for your application — you can change anything.

Step 2

Room geometry

m
Internal length, wall to wall.
m
Internal width, wall to wall.
m
Internal height, floor to ceiling.
Box location
Step 3

Conditions

Auto-fills ASHRAE 0.4% design DB + 2 K climate uplift. Override below if needed.
°C
%
°C
%
Step 4

Walls (Izhar PIR panels)

U-value computed live below.
Floor type
Above-grade floors lose more heat (no ground sink). Insulated slab is the premium build for freezers.
Step 4c

Doors & infiltration

m
m
Reduces door air exchange by ~50% (E factor per ASHRAE Refrigeration Ch. 24 Table 14).
Step 4b · Advanced

Wall sections (optional)

Step 5

Product load

Daily throughput cooling + respiration heat for live produce. ASHRAE Refrigeration Ch. 19 thermal properties database (226 products).

Step 6

Internal loads

W/m²
Modern LED installs run 6–10 W/m².
h/day
count
h/day
kW
Defrost
Step 7

Safety & run-time

Safety factor
Usage intensity
Door usage / traffic. Heavy = busy retail / loading dock.
WA