NRC and Industry Stakeholders Including CIPH Work Together to Determine Best Course of Action for Re

CIPH News On January 25, 2009
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On January 24 & 25, a Task Group of the Canadian Codes Centre at the National Research Council brought together key individuals specifically suited to examine the health and safety risks associated with hot water delivery in buildings. This task group will make recommendations to the Standing Committee on Building and Plumbing Services. CIPH staff (Jason Bourque) and other members participated either on the task group or as observers.

It was agreed in the task group deliberations that both scalding and legionella bacteria were important issues that needed to be considered when drafting code requirements. It was also consensus amongst the group that water storage be at 60°C while water delivery at high-risk point-of-use be at 49°C. (Higher-risk point-of-use being defined as showers, tubs, shower/tub combinations, bathroom sinks, and bidets) Other point-of-use (but not defined as higher-risk) delivery considerations were reviewed as well. The draft of the code language is being formulated by Raman Chauhan, the task group's technical advisor, for presentation and review at the next meeting.

On March 7 & 8, the Task Group will meet again in Toronto to continue its work towards developing technical alternatives that will consider:

  • Health and safety Issues
  • Technical feasibility and reliability
  • Cost implications
  • Enforcement implications
  • Retrofit situations

On Wednesday, January 26, CSA’s C22.2 No. 110 technical committee met regarding the temperature of electric hot water heaters. CIPH staff (Jason Bourque, Ralph Suppa), along with CIPH domestic water heater manufacturers were in attendance. A briefing was provided on the January 24 & 25 meetings of the NRC Task Group on Hot Water Delivery in Buildings. The attendees concluded that, until the NRC Task Group completes its work and writes a code, any efforts by the C22.2 No. 110 committee may result in non-uniformity of codes and standards.

As such, a motion will be taken to members of the committee to rescind the earlier amendment regarding lowering temperatures on electric hot water tanks to 49oC.. Meetings of this committee will resume when the Task Group has completed its work.

For more information regarding this meeting, please contact Tom Bartoffy at tom.bartoffy@csa.ca.