Crowne Plaza (Oklahoma City) Outdoor Boiler Retrofit for Domestic Hot Water

Project overview

This project was a domestic hot water (DHW) boiler retrofit at a Crowne Plaza property in Oklahoma City. This wasn’t a hydronic heating loop serving air handlers—it was the hot water guests depend on for showers.

That distinction matters because hotels operate on a different scoreboard:

• Guest impact is immediate (complaints start fast).
• Downtime impacts revenue (no hot water → fewer sellable rooms).
• Maintenance windows are tight because occupancy doesn’t stop.

For year-round reliability planning after a retrofit like this, use our industrial boiler preventative maintenance schedule.

Why an outdoor boiler is a special case in Oklahoma

Outdoor boiler installs aren’t “wrong,” but they come with a non-negotiable Oklahoma risk: freezing.

When water-side equipment freezes, the damage is usually total:

• split heat exchanger
• cracked fittings
• destroyed pumps and valves

In our experience, freeze damage is one of the most expensive “avoidable” failures we see every year—especially at hospitality properties where the team is focused on occupancy and guest experience (as they should be).

Scope of work (what we did)

This was a straightforward retrofit executed fast—about two days on site (two technicians).

Rigging and set

We used a small crane to set the new unit safely. Even for compact boilers, rigging matters because:

• the unit has to be placed correctly for service access
• lifting mistakes create injury risk and equipment damage

Piping and copper work

We completed the water-side tie-ins, including copper soldering where applicable, then verified:

• correct supply/return configuration
• proper support and routing
• insulation where required

Pump flow verification

Small boilers can still fail early if the water side isn’t right. We verified flow fundamentals:

• pump operation
• adequate flow rate
• no obvious dead-heading or air-binding

If flow is wrong, the boiler looks like it’s the problem when it’s actually a system issue.

Venting / flue

We completed the flue/vent connection and verified it was installed correctly. Combustion equipment is never “close enough”—it either meets requirements or it doesn’t.

Electrical, gas, leak checks, and startup

A proper retrofit includes the “boring” parts:

• electrical verification
• gas leak check (if applicable to the boiler configuration)
• water leak check
• startup checklist for safe operation

Those handoff steps align with the prep items in our Oklahoma boiler inspection requirements guide.

Permits and inspection

We pulled required permits, completed the work, and closed it out by meeting applicable code requirements. That’s important for hospitality facilities because:

• insurers care
• ownership cares
• “temporary fixes” have a way of becoming permanent liabilities

Results (what the hotel got)

• restored reliable domestic hot water service
• newer equipment with improved efficiency vs. the old unit
• a reset baseline for maintenance planning and winter readiness

Lessons learned (hospitality operations reality)

1) Hotels can’t afford “surprise” boiler failure

Hospitality teams are trying to sell rooms and hit monthly numbers. They don’t need the distraction of emergency DHW problems.

The fix isn’t panic-replacing equipment every year—the fix is a plan:

• seasonal checks before hard freezes
• freeze protection verification
• documented maintenance windows

2) Outdoor DHW equipment should trigger a freeze-protection checklist

If you have any water-side equipment outdoors in Oklahoma, we recommend a written checklist that covers:

• heat trace verification (where installed)
• insulation condition
• enclosure/wind protection where needed
• emergency response steps during freeze events

If this topic is top-of-mind, see our freeze recovery guidance here: Oklahoma ice storm HVAC recovery.

If your property also depends on rooftop units through winter, add this RTU winterization checklist for Oklahoma to the same seasonal plan.

Decision guidance: when to retrofit vs. repair

If you need to quantify that replacement threshold, use this industrial boiler replacement cost estimation framework.

Need boiler/DHW support for a hotel or hospitality property?

If you operate a hotel in the OKC metro and need reliable domestic hot water without emergency chaos, we can help you plan the right retrofit and the maintenance strategy to protect it. Call (405) 223-9900 or request a proposal.

Disclaimer: This case study is informational and generalized. Boiler configuration, venting requirements, and permitting vary by site conditions and applicable codes. Always follow OEM requirements and qualified professional guidance.