Insuring Chillers, RTUs, and High-Value HVAC Equipment in Transit and On Site

A single commercial chiller can cost more than a work truck, and once it leaves the warehouse your standard property policy stops covering it. Installation floater limits, set on an inland marine policy, are what actually protect a chiller, rooftop unit (RTU), or boiler in transit and on the jobsite until the owner accepts the finished install. This guide shows a larger HVAC company how to size those limits to the six-figure equipment it moves every week.

What insures a chiller or RTU between the warehouse and the roof?

Inland marine coverage insures high-value HVAC equipment from the warehouse, through transit, and onto the jobsite until installation is complete. A standard property policy or business owners policy covers property at your fixed location, so it stops the moment a chiller leaves the yard on a flatbed. Inland marine fills that gap for property on the move.

That gap is wider than most owners expect. The Insurance Information Institute notes that inland marine covers products, materials, and equipment transported over land, plus high-value items that basic property coverage excludes once they leave a fixed location. For an HVAC company setting equipment worth more than its trucks, an inland marine policy is the line doing the real work.

Installation floater vs. equipment floater vs. cargo coverage

Three inland marine floaters cover different property, and a larger HVAC company usually needs all three. An installation floater covers the materials and equipment you are installing for a customer until they accept the work. A contractors equipment floater covers the tools and machinery you own and move between jobs. Motor truck cargo covers property while it rides on your own trucks.

Each has a specific job. An installation floater is inland marine coverage on property being installed by a contractor, written as a specialized form of builders risk. An equipment floater covers equipment that moves from place to place, and motor truck cargo covers loss of property in transit on the insured's own vehicles.

Builders risk sits next to these but covers something else. It insures the structure under construction, so the general contractor's builders risk pays for the building, and your installation floater pays for the equipment you bring to it. (This is the split most guides blur.)

How do you set installation floater limits for HVAC equipment?

Set installation floater limits to the value of your largest single job, not your average job. The policy runs on a few limits at once: a per-location limit sized to the biggest install you have open, a transit limit for equipment on the road, and a catastrophe limit for everything exposed at one site during a peak week. The largest single loss is what has to be covered.

The math is easy to get wrong. Take a mechanical contractor installing a $220,000 chiller plant on a hospital job. If the installation floater's per-location limit is only $150,000, that single install is underinsured by $70,000 before the chiller is even energized. Size the per-location limit to the full $220,000, then set a transit limit high enough for a loaded trailer, since a truckload of switchgear or a large packaged RTU can top $100,000 on one flatbed.

Review the limits whenever your job size steps up. A shop that grows from $40,000 replacements into six-figure chiller plants outgrows the equipment in transit coverage it bought two renewals ago, and the shortfall only surfaces after a loss.

Where installation floater coverage ends: owner acceptance and rigging

Installation floater coverage runs during the install and ends when the owner accepts the completed work, because the equipment becomes their property and their coverage at that point. Two hand-offs matter before then. The crane lift that sets the unit is its own exposure, and the tools you own ride on a separate floater from the equipment you are installing.

A dropped RTU during a crane set is a good example. That loss falls under riggers liability, not the installation floater, because the unit is in your care while it hangs from the hook. On new-construction jobs, the general contractor often carries builders risk on the structure, which still leaves your equipment on your own inland marine limits.

How to get high-value HVAC equipment covered

Getting this right means matching your inland marine limits to the jobs you actually bid, then keeping them current as job sizes grow. Coverwatch sets installation floater and motor truck cargo limits to the largest jobs an HVAC contractor actually runs, rather than a generic default, as part of its flat-fee HVAC insurance program.

For the full picture across property, auto, and inland marine, see how an established HVAC insurance program is built, what changes when you outgrow a business owners policy, and how coverage shifts as you add trade lines to the business.