Case Study

Interior Health - Multiple Locations

British Columbia, Canada

$6,041 (CAD)


30,300 kg CO2e

The performance of EndoTherm was piloted by Interior Health, a regional health authority serving the southern interior region of British Columbia, Canada.

The energy management team at Interior Health decided to pilot EndoTherm at three locations that had daily
actual meter reading data to provide the best data for the measurement & verification process. This included:

Swan Valley Lodge – Creston, British Columbia
South Similkameen Health Centre – Kremeos, British Columbia
Columbia View Lodge – Trail, British Columbia

 The installs of the hydronic additive also qualified for a rebate from FortisBC. System volumes were
identified by the incumbent water treatment provider through an on-site tracer test.

The analysis methodology takes guidance from IPMVP (Option C). A baseline for each site was created
using daily natural gas consumption data stretching back to 2018-2020 dependent on the site. Variations in
the baseline due to occupancy / operational changes (and COVID-19 impacts) were taken into consideration
in choosing the correct baseline.

A baseload (gas consumption not linked with space heating) was identified using the summer load for each
site. A predicted value for each day in the post-install period (compiled from the trend-line for the baseline
data) was compared against the recorded consumption value. All sites were monitored up to the end of May 2022.

Figure 1: a comparison of pre & post consumption data normalized with Heating Degree Days at Swan Valley Lodge.

Figure 2: a comparison of pre & post consumption data normalized with Heating Degree Days at Columbia View Lodge

Figure 3: a comparison of pre & post consumption data normalized with Heating Degree Days at South Similkameen
Health Centre


Location Pilot Length Total Saving (%) Space Heating Saving (%) Saving (GJ) Financial Saving (CAD)
Swan Valley Lodge 166 Days 7.88% 10.50% 447.34 $4,473.44
Columbia View Lodge 70 Days 10.38% 13.48% 156.79 $1,567.90
South Similkameen HC 97 Days 8.72% 11.64% 116.02 $1,160.20



Total Saving:


Total Cash Saving:

$6,041.34 (CAD)

Total CO2e Saving:

30,300kg CO2e


Carbon Reduction Equivalents:


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