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Mainstay Suites
®
Winnipeg | Hospitality
THE SMARTER WAY TO DO HOT WATER
For nearly six years, since it opened in 2011, the Mainstay Suites Winnipeg had
relied on four leaky, inefficient 80-gallon atmospheric hot water tanks. Not that long
ago, guests at the Mainstay Suites Winnipeg Hotel might face a rude awakening
in their morning shower when the hot water ran out. But now, since four Rinnai
Demand Duo® Hybrid units were installed in June 2017, the hotel is running at full
capacity, and both guests and management are happy with the change. Combining
the best of both tank and tankless design, Demand Duo delivers hot water so
efficiently that the hotel’s natural gas savings have totaled more than $9,000 in
the first eight months, despite the colder-than-normal winter.
BEFORE
BEFORE
AFTER
AFTER
Countryside High School | Education
SAVINGS FROM DAY ONE
For years, the Pinellas County School System, located in the Tampa Bay area of
Florida, relied on traditional tank-style water heaters that lasted typically only six to
eight years, at the most. “With such a short life span, I knew there had to be a better
alternative,” said Ty Crawford, in charge of maintenance for the school system.
Since October of 2016, when the Countryside High School installation took place,
the Pinellas County School System has replaced tank-style units in another seven
schools with Rinnai’s Demand Duo® Hybrid Water Heating Systems. “If the heat
exchanger ever does fail, I can swap it out for a fraction of the cost of new water
heaters,” Crawford added. On average, Countryside High School saves close to
20% on their monthly utility bills since switching to the Rinnai Demand Duo units.
Crowne Plaza Atlanta – Midtown | Hospitality
WORRYFREE INSTALLATION
Rinnai’s total turnkey solution for this 432-room hotel delivered immediate savings
on energy costs in November 2019. Managing all aspects of design, logistics,
installation and billing, Rinnai replaced two aging, increasingly inefficient dual-
burner boilers with 10 Demand Duo® 2 Hybrid Water Heating units. Now, Demand
Duo’s 97% thermally efficient system serves all the domestic hot water needs
for the property, fitting in the same footprint as just one of the boilers and freeing
up space in the mechanical room. Additionally, two Demand Duo 2 units in the sub-
basement supply all the hot water needs of the hotel’s commercial kitchen
and laundry.
Transforming the Way
Water is Heated.
SUCCESS STORIES
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