What are the opening hours?

Monday 7:30am - 4pm Tuesday 7:30am - 4pm Wednesday 7:30am - 4pm Thursday 7:30am - 4pm Friday 7:30am - 4pm

R. W. Fernstrum & Company

Name: R. W. Fernstrum & Company
Address: 1716 11th Avenue, Menominee, MI, US
Telephone: +19068635553

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Menominee, MI
R. W. Fernstrum & Company

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Manufacturer of the GRIDCOOLER® Keel Cooler, est. 1949

10/29/2026

The simplicity of keel cooling increases the overall reliability of your vessel by eliminating potential points of failure associated with raw water cooling. Seacocks, strainers, seawater pumps, and their associated maintenance are eliminated, as a keel cooler requires only the circulating pump already on the engine to move coolant between the keel cooler and engine. Waste heat is dissipated directly from the keel cooler to the seawater the vessel is operating in, eliminating concerns caused by intake of debris and pollutants from the surrounding water.

Learn more at fernstrum.com/gridcooler-keel-cooler/how-keel-coolers-work/

10/23/2026

Congratulations, Marvin E., on 15 years with Fernstrum!
Marvin brings the Fernstrum commitment to excellence every day in his work welding/fabricating boxcooler components, and he personifies our culture of unwavering service when helping out in final testing and shipping/receiving. Thank you, Marv!

10/14/2026

Behind every vessel on the water are people who rely on it for their livelihoods. This is why everyone at Fernstrum takes their work so personally. It's why we are so precise in engineering, meticulous in fabrication, and uncompromising in selecting materials. In everything we do and every decision we make, we have one focus—keeping you working on the water.

09/22/2026

Welcome Sherry — Admin Assistant!

Fernstrum is delighted to welcome Sherry as an Administrative Assistant supporting finance, sales, reception, shipping, and purchasing. Her organized, detail-oriented approach makes her a great fit for the Fernstrum culture. Away from work, she finds enrichment in time spent with family and grand-pups.

09/18/2026

Welcome Raachel H — Controller!

Raachel brings over 25 years of accounting experience to Fernstrum, primarily in manufacturing. She thrives in dynamic environments with many moving parts, from purchasing and operations to inventory management, and shares Fernstrum's commitment to excellence in product, process, and customer service. Outside of work, she escapes to the woods with her family, especially during the winter months when the snowmobile trails are primed.

09/04/2026

Fernstrum is closed on September 7th to mark a national holiday in the US, Labor Day, a day to celebrate those whose hard work keeps the world moving forward.

We will give your message priority attention when we're back at work on Tuesday, September 8th.

08/28/2026

Congratulations to Adam F on his 25th anniversary with Fernstrum. Throughout his tenure, Adam has embraced and embodied the Fernstrum commitment to excellence and service. In addition to his primary responsibility building the WEKA Boxcooler, he helps out brazing keel cooler header sub-assemblies, and willingly lends a hand in shipping and receiving.

08/27/2026

We're excited to announce the launch of the new Fernstrum website that goes further, works harder, and does more. In addition to sharing insights about our products and company, the site offers valuable information about marine cooling to help you make informed decisions about keeping your vessel operating efficiently and reliably, long-term.

🔗 Check it out: fernstrum.com

08/19/2026

Real people answer our phones. Messages are relayed immediately and calls returned within a day. This is how Fernstrum achieves customer satisfaction scores that are the envy of companies in any industry. Behind every cooler is a vessel, and behind every vessel are people who rely on it for their livelihoods. So, yes, we handle every call, inquiry, and message as a priority.

07/29/2026

Congratulations to Canal Barge LLC on taking delivery of the Cabby H. Boone. This is a twin-screw vessel with Tier 4 Mitsubishi S12R engines, each rated at 1,260 hp at 1,600 rpm, providing a total of 2,520 hp. We are very proud to have provided GRIDCOOLER® Keel Coolers that will help keep this impressive boat working with relentless power.

Address

1716 11th Avenue
Menominee, MI

Opening Hours

Monday	7:30am - 4pm
Tuesday	7:30am - 4pm
Wednesday	7:30am - 4pm
Thursday	7:30am - 4pm
Friday	7:30am - 4pm

Telephone

+19068635553

Website

http://www.fernstrum.com/

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