Wuzler.Leak rate calculator

The ladder

Pricing

Monthly · cancel any time

The calculators are free and need no account. A free account keeps one appliance. The ledger is priced by who keeps it: an owner with a handful of appliances, or a contractor keeping the record for every customer.

Free · no account, then one appliance

The calculators

$0

no signup

  • Leak rate calculator
  • Applicability checker
  • GWP lookup
  • A printable result

A free account

$0

one appliance

  • One appliance card
  • Service entries on it
  • The leak rate on every addition
  • The 30-day clock

The ladder · monthly, cancel any time

the owner or operator

$29/month

up to 10 appliances

  • Up to 10 appliance cards
  • The printed record per visit
  • Chronic-leak report data
  • Three-year export

the service contractor

$99/month

up to 100 customer sites

  • Multi-customer workspace
  • Owner hand-off by link, no login
  • Tech 608 numbers on tickets

the multi-crew contractor

$299/month

unlimited sites

  • Everything in Contractor
  • Priority on the rules library

Not on sale yet.

The ledger is being built behind the free tools. This page takes orders only when the ledger and the payments are both done, not before.

Not on sale yet. Want to know the moment it is?

Email us and we will reply once, when it is.

One reply, when it is on sale. No list, no newsletter.

The deal, plainly

  • Monthly, cancel any time; the ledger runs to the end of the paid month.
  • Your records are yours. Export them at any time as CSV and as the printed ledger. On cancellation they stay exportable for the three years the rule keeps them in scope.
  • A contractor's customer data is the contractor's. It is never sold or shared, and there is no marketplace.
  • The product records and computes. It does not certify compliance, and no page here will say it does.
  • 30-day refund on the first payment, no questions.
40 CFR 84.106(l), (l)(1)· verified 2026-09-04 · three years is the rule's retention, and the export honours it

What it looks like

The instrument and the printed ticket, as they render. Sample figures, engine-computed.

Instrument · leak rate

S/N 4H7-220913
0%100%limit 20%
Leak rate · annualizing method63.0%
limit 20%
commercial refrigeration
Full charge42.0 lb
Added 2026-04-264.0 lb
Added 2026-09-049.5 lb
Added this year13.5 lb · 32.1%
Chronic-leak threshold125% in a calendar year
Over limit · 2026-09-04

Service ticket · leak inspection

Inspected · 2026-09-11
Appliance S/N
4H7-220913
Method
Electronic detector
Technician · 608
U-2231-4408
Leaks found
1 · suction line joint
All accessible parts
inspected
Repair due
2026-10-04
Record kept with Wuzler Refrigerant Log84.106(l)(5)