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Replace your KoolR Magnum: the Wine-R WR2500 drop-in guide
The Wine-R WR2500 replaces a KoolR Magnum in the existing wall opening. Same through-the-wall format, same 120V/15A circuit, no cutting or framing changes in nearly all installations. $2,450 USD, 2-year parts warranty, ships direct to the 48 contiguous US states.
US owners replacing a KoolR Magnum
US owners of a KoolR Magnum installation in a residential cellar between 50 and 700 cubic feet with glass walls or up to 900 cubic feet in fully enclosed cellars, R-20 minimum insulation, and an existing through-the-wall installation.
KoolR Magnum stopped cooling: repair or replace?
If a KoolR Magnum has stopped cooling, the real decision is whether to repair an aging unit or replace it with a drop-in. On an older, out-of-warranty unit, an open-ended repair is often hard to justify: fixing a major component can be a significant expense, and it does not reset the clock on the rest of the system.
Start with the warranty. If the unit is still covered, warranty service is the first step. If it is out of warranty, the questions below decide it.
Common signs a through-the-wall unit is failing
The cellar drifts warm, the unit runs constantly without holding temperature, it short cycles on and off, ice builds up on the coil, or it gets noticeably louder. These usually point to the parts that wear on any refrigeration system after years of runtime: the compressor, a refrigerant loss, or the controller.
When a repair stops making sense
A repair fixes one component but does not reset the clock on the rest of an aging system, so a fix to one part can be followed by another a season later. Once a unit is well out of warranty, the cost and uncertainty of a major repair are worth weighing against a new, warrantied unit.
A simple rule
If the unit is under warranty, repair it. If it is out of warranty and the failure is a major component, a drop-in replacement is usually the better spend than a series of repairs on an aging unit. Because the WR2500 shares the KoolR Magnum's through-the-wall format and wall dimensions, it drops into the same opening with no wall changes, so replacing is often less disruptive than a drawn-out repair. What carries over is covered below.
What fits and what carries over
The WR2500 fits the standard KoolR Magnum wall cutout of 15 3/4 inches wide by 9 3/4 inches high, up to 7 inches wall thickness. It matches the through-the-wall format and runs on the same 120V/15A residential circuit. In nearly all installations, no cutting, framing, or electrical work is required.
The wall opening, framing, and outlet from your original KoolR install carry over to the WR2500. The most expensive part of the original installation stays paid for.
The WR2500 covers cellars up to 700 cubic feet with glass walls and up to 900 cubic feet in fully enclosed cellars. With R-20 minimum insulation, a typical Magnum installation fits within range. For cellars beyond standard capacity, submit your project details and we will come back with a recommendation within one business day.
When your through-the-wall cooling unit reaches end of service life
Through-the-wall cooling units are finite-life appliances. The compressor wears out first. On residential cellar units, the compressor typically begins to show trouble between year 8 and year 12. The signs are familiar: longer cycle times, temperature creeping above setpoint on hot days, more noise than the unit used to make, and eventually a hard failure.
Units installed during the 2010s are reaching that window now. When yours reaches that point, the practical question is what goes in its place. Owners face a binary choice: cut a new wall opening to fit a different unit, or find a drop-in replacement that fits the existing opening.
The WR2500 fits that second path. Its through-the-wall footprint matches one of the established residential cellar formats, which means an in-kind replacement preserves the most expensive part of the original install (the wall opening, framing, and electrical) for the customer.
Side by side: KoolR Magnum and the WR2500
Three measurements and three photos, every US order
Measure the existing wall opening at three points: width, height, and wall thickness. Take photos of three views: the cellar-side face, the warm-vent side, and the electrical outlet. Send the measurements and photos through the contact form. Wine-R confirms fit before the unit ships. Pre-validation is required on every US order. The WR2500 fits the standard KoolR Magnum opening, but every install has site-specific factors (drywall depth, framing variations, conduit position) worth verifying once before committing.
What stays the same
The wall opening from your KoolR Magnum works for the WR2500. The width, height, and wall thickness range match. The framing around the opening, the drywall finish, and the trim do not need to change.
Electrical does not change. The WR2500 runs on a 120V/60Hz/15A circuit, the same as the KoolR. If your existing outlet is on a dedicated circuit (which it should be), it stays. If it shares a circuit with other loads, the replacement is a good moment to ask an electrician about adding a dedicated circuit for the cooling unit.
The warm-side venting requirement stays. Through-the-wall units exhaust heat into the warm side of the wall (utility room, garage, mechanical closet) with adequate airflow. If your KoolR Magnum was venting properly, the WR2500 will too.
What changes
The fascia design is different. The WR2500 front face does not match the KoolR Magnum. If you built custom trim or a surround around the KoolR fascia, that trim probably will not align with the WR2500. Most installations are straightforward to retrim, or to leave with the manufacturer fascia.
The warranty and support relationship is different. The WR2500 ships with a 2-year limited parts warranty supported directly by the Wine-R North American service team. There is no dealer in between. When you call or email about a unit, you reach the people who built it. Replacement parts are stocked in North America and ship under the warranty terms when applicable.
The ordering process is different. Wine-R sells direct to consumers in the US through a secure checkout with sales tax calculated automatically per state. There are no dealers between you and the unit. The WR2500 ships direct to all 48 contiguous states, delivered in 5 to 8 business days.
Sizing check before you order
The WR2500 covers cellars up to 700 cubic feet with glass walls and up to 900 cubic feet in fully enclosed cellars, with R-20 minimum insulation. Larger cellars are reviewed case by case.
Glass exposure: glass roughly doubles the heat load per square foot compared to an insulated wall. A cellar with glass walls or a large glass door requires more capacity. The Wine-R WR2500 covers up to 700 cubic feet with glass walls. Submit your project details and we will come back with a recommendation within one business day.
Oversizing risk: oversizing a unit is sometimes assumed to be safer than undersizing, but it is in fact the same common cause of premature compressor failure in residential cellars. The unit cycles too long, the compressor wears faster, and the temperature inside the cellar swings more than the wine should see. The right size is what the calculator and our technical team confirm for your specific build, not a safety margin.
The BTU calculator factors in cubic footage, climate zone, glass exposure, and insulation. A few minutes there will tell you whether the WR2500 is right for your space.
Common questions about replacing a KoolR Magnum
Yes, in nearly all KoolR Magnum installations. The standard KoolR Magnum wall cutout is 15 3/4 inches wide by 9 3/4 inches high. The WR2500 fits this opening in standard installations. Send width, height, and wall thickness measurements plus photos through the contact form before ordering. Wine-R confirms fit specifically for your opening before shipping.
Yes. The WR2500 runs on a standard 120V/60Hz/15A residential outlet, the same circuit as the KoolR. No electrical changes are required if your existing outlet is on a dedicated circuit and in working order.
The WR2500 uses R290 refrigerant (propane), a hydrocarbon with a global warming potential of 3. R290 is the current standard for residential cooling units in North America and is replacing older HFC refrigerants across the industry.
Most US orders are delivered within 5 to 8 business days. The WR2500 ships direct to all 48 contiguous US states.
The WR2500 is comparable in operating sound to the KoolR Magnum. The compressor sits on the warm side of the wall, which keeps most of the noise out of the cellar space. Specific decibel levels depend on the install conditions on both sides of the wall.
The WR2500 covers cellars up to 700 cubic feet with glass walls and up to 900 cubic feet in fully enclosed installations. For larger cellars, submit your project details and our technical team will come back with a recommendation within one business day.
Through-the-wall installation is DIY-feasible for most US homes when you are replacing an existing unit. The install instructions are designed to follow without HVAC certification. If you prefer a professional, an electrician or a general contractor familiar with cellar work can handle it without HVAC certification.
Every WR2500 comes with a 2-year parts warranty supported by the Wine-R North American service team. Full warranty terms and how to reach support are on the support page.
Wine-R currently ships within the 48 contiguous US states only. Alaska, Hawaii, and US territories are not in the current shipping zone. Contact the Wine-R team if you are in those regions and we will share timeline updates.
Some KoolR Magnum installations have site-specific factors: thick custom drywall, modified framing after years of use, or conduit that runs through the opening area. Send your measurements and photos through the contact form. The Wine-R team reviews and confirms fit before the unit ships, on every order.
If it is still under warranty, start with warranty service. If it is out of warranty and the fix involves a major component like the compressor or a refrigerant leak, it is worth weighing the repair cost against a new unit, since replacement often makes more sense on an aging unit. The WR2500 is a drop-in replacement that fits the same wall opening.
The common signs are a cellar that drifts warm, a unit that runs constantly without reaching temperature, short cycling on and off, ice building up on the coil, or a noticeable increase in noise. These usually point to the compressor, a refrigerant loss, or the controller reaching the end of their service life.
KoolR® and KoolR Magnum® are trademarks of their respective owners. Wine-R is not affiliated with, sponsored by, or endorsed by KoolR. This article is provided for informational purposes for owners considering replacement options.
Liability and warranty considerations
The WR2500 is sold under Wine-R’s Terms of Sale and Limited Warranty. Wine-R’s warranty covers unit parts for two years from the original purchase date.
Warranty coverage is voided by, among other conditions:
- Damage from improper installation, poor insulation, or oversized or unsealed rooms
- Use of extension cords, switch-controlled outlets, or non-dedicated circuits
- Use of single-pane or non-insulated glass in the cellar envelope
- Installation through an exterior wall, into a sealed cavity, or into an unventilated cabinet
- Service performed by anyone other than Wine-R or a Wine-R authorized technician
- Damage from drainage installation, blockage, overflow, or any drainage failure
Pre-validation by Wine-R confirms unit fitment against declared measurements only. The owner or installer is responsible for envelope construction, wall structural assessment, electrical compliance, drainage routing, and ongoing operating conditions. Wine-R does not warrant against water damage, mold, finish degradation, or property loss caused by installation, drainage configuration, site conditions, or operating environment.
About this guide
This guide is built and reviewed by the Wine-R engineering team. Wine-R specializes in through-the-wall wine cellar cooling and has supported drop-in replacements across North America. Recommendations follow the WR2500 manufacturer specifications and standard residential building-science references.
See if the WR2500 fits your cellar
The BTU calculator factors in cubic footage, climate, glass exposure, and insulation. A few minutes there will tell you whether your existing wall opening will work and whether the WR2500 is the right size for your space.