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Steam Systems and Steam Trap Surveys

Enbridge Gas will fund a steam trap survey by name, at up to half the cost. In our October 2026 review of thirteen Canadian energy consultancies, not one offered the service. That is a funded, high-return, uncontested piece of work sitting in plain sight.

Why steam is different

A steam system fails invisibly and continuously. A trap that fails open vents live steam straight to atmosphere or to condensate return, and nothing about the plant tells anyone: the boiler just works slightly harder, every hour, for as long as it takes somebody to go and look. A trap that fails closed is worse operationally — it waterlogs the equipment it serves and the process underperforms — but at least that one gets reported, because something stops working.

That asymmetry is the whole reason surveys exist. Nobody reports the expensive failure mode.

What the survey covers

  • Trap-by-trap testing — ultrasonic and temperature, against the trap type and the service it is on. Each trap recorded, located and tagged, with its condition.
  • Loss quantified per failed trap, from orifice size, system pressure and operating hours. This is what turns a list of faults into a ranked repair schedule.
  • Condensate return — how much is coming back and at what temperature. Condensate dumped to drain is treated water and heat, both paid for twice.
  • Flash steam and whether any of it is recoverable.
  • Insulation on steam and condensate lines, valves and fittings. Uninsulated valve bodies and flanges are a surprisingly large distribution loss and the cheapest thing on the list.
  • Boiler plant — combustion efficiency, blowdown rate and heat recovery, stack temperature, and whether the plant is sequenced or just all running.
  • Pressure — whether the system is generated and distributed at a pressure the end uses actually require.
  • A trap register you keep, so next year's survey is a re-test rather than a rediscovery.
The deliverable that matters

The tagged trap register. A report that says "23 traps failed" is an invoice; a register that says which 23, where they are, what each one is losing and in what order to fix them is a work plan your maintenance team can execute and re-test against. We hand over the register as a spreadsheet, not only as a PDF.

The funding, in Enbridge's own terms

Commercial Custom Audits & Studies — verified 3 October 2026
ItemTerms
Named fundable workEngineering feasibility studies, steam trap surveys, air and water balancing, metering installations
Share fundedUp to 50% of eligible assessment costs
Cap$10,000 commercial, $20,000 institutional, tiered by consumption
Minimum consumption100,000 m³ of natural gas in the previous year
Pre-approvalRequired before the survey starts

Source and full detail: Enbridge Gas will pay for up to half of your energy study.

Then the repairs themselves route through the Commercial Custom Retrofit Program at up to $0.40 per cubic metre of gas saved, to 75% of cost, capped at $100,000 commercial and $500,000 institutional.

Honest limits

  • We survey and quantify. We do not repair. No trap sales, no contracting, no commission — see independence.
  • Enbridge does not publish the auditor credentials it requires for this category, and the category is named "engineering feasibility studies". We confirm the requirement with Enbridge in writing per project rather than assuming it either way.
  • A survey is a snapshot. Traps fail continuously, so the value is in repeating it and re-testing against the register.

Common questions

We are hydronic, not steam. Does any of this apply?

The trap work does not. Air and water balancing does, it is funded by Enbridge by name, and it is also an eligible measure under IESO's Existing Building Commissioning programme — so the same work can sit inside two funding routes.

Our maintenance contractor already checks the traps.

Good, and ask them for the register and the loss figures. If what comes back is a list of traps replaced rather than a tested population with losses quantified, you have a repair record rather than a survey, and you have no way to know what is still failing.

How long does it take?

Site time depends almost entirely on trap count and access. The scheduling constraint is usually the Enbridge pre-approval in front of it, which is weeks rather than days.

Related

Where to go next

Request a proposal

Tell us what is driving the decision

A compliance deadline, an incentive application, a financing requirement, or a capital plan. Tell us which, and we will tell you what you need and what it will cost — as a fixed fee, before any work starts.

If you do not need an audit, we will say so.