The Ultimate Boat Winterization Checklist for Klamath Falls



As the vibrant summer days on Upper Klamath Lake give way to the crisp autumn air, boat owners in Klamath Falls, OR, know that a crucial season is approaching. With a unique high desert climate that blesses us with over 300 days of sunshine but also brings cold, snowy winters with temperatures dipping well below freezing, preparing your boat for the off-season isn't just a suggestion—it's essential. At Best Homes Storage, we've been helping our neighbors in Klamath County protect their valuable investments for years. We understand the specific challenges our local climate presents, from heavy snowfall averaging 37 inches to temperatures that can plummet to 8°F.

This comprehensive checklist will guide you through the vital steps of winterizing your boat, ensuring it remains in peak condition and is ready for you to enjoy as soon as the weather warms. When you're done, we'll be here at our convenient location at 5890 Washburn Way, Klamath Falls, OR 97603, to provide the secure storage your vessel deserves.


Secure Your Investment with Best Homes Storage

Once your boat is properly winterized, the final step is to find a secure place to store it. At Best Homes Storage, we offer a variety of vehicle storage, RV storage, & self-storage options to meet your needs. Our facility at 5890 Washburn Way is fully fenced and monitored by 24-hour video surveillance, giving you peace of mind that your boat is safe and secure.

Our convenient location in Klamath County makes us easily accessible, whether you're coming from a day of exploring the Klamath County Museum, Baldwin Hotel Museum, or the Favell Museum. With our drive-up access, storing your boat is a hassle-free experience.

Don't leave the safety of your boat to chance this winter. The cold, snowy winters of Klamath Falls demand proper preparation and secure storage. Follow this checklist, and then give us a call at Best Homes Storage. We're here to provide the perfect storage unit to protect your investment until your next adventure on the water.


1. Engine and Fuel System: The Heart of Your Boat
The engine is the most critical and expensive component of your boat. Protecting it from the freezing temperatures in the 97603 area is paramount.
  • Fuel Stabilization: Fill your fuel tank to about 90% capacity, leaving a small amount of room for expansion. Add a quality marine fuel stabilizer to prevent the fuel from degrading, which can lead to gum and varnish buildup in your fuel lines and engine. Run the engine for 10-15 minutes to ensure the stabilized fuel circulates throughout the entire system.
  • Oil Change: Change the engine oil and filter. Used oil contains contaminants that can cause corrosion and damage to internal engine components during storage.
  • Flush and Drain the Cooling System: For inboard and sterndrive engines, flush the cooling system with fresh water. Then, completely drain the water from the engine block, manifolds, and hoses to prevent freezing and cracking.
  • Add Antifreeze: Circulate a non-toxic, propylene glycol marine antifreeze through the cooling system. This will protect against any residual water freezing and causing catastrophic damage.
  • Fog the Engine: Spray fogging oil into the carburetor and spark plug holes to coat the internal surfaces of the engine. This protective layer of oil prevents rust and corrosion from forming due to condensation.

2. Plumbing and Water Systems: Prevent Costly Repairs
Any water left in your boat's plumbing system can freeze, expand, and crack pipes, pumps, and tanks.
  • Drain All Water: Completely drain the freshwater tank, hot water heater, and all pipes. Don't forget the bilge, livewells, and any washdown systems.
  • Add Antifreeze: Run non-toxic marine antifreeze through all the plumbing systems, including the sinks, shower, and toilet.

3. Battery and Electrical: Preserve Your Power Source
  • Remove and Store: Remove the battery from your boat, clean the terminals, and fully charge it. Store the battery in a cool, dry place off the concrete floor, preferably on a trickle charger to maintain its charge throughout the winter.

4. Interior and Upholstery: Keep it Clean and Dry
  • Thorough Cleaning: Clean the interior of your boat from top to bottom. Remove all food, drinks, and personal items that could attract pests.
  • Protect from Moisture: To prevent mold and mildew, ensure the interior is completely dry. Use moisture-absorbing products or a small, boat-safe dehumidifier.
  • Remove Valuables: Take home any valuable electronics, safety gear, and personal flotation devices.

5. Exterior and Cover: Your First Line of Defense
  • Clean the Hull: Pressure wash the hull to remove any algae, barnacles, and other marine growth.
  • Wax the Exterior: Apply a quality marine wax to the hull and deck to protect the gelcoat from the harsh winter elements.
  • Cover Your Boat: Use a high-quality, breathable boat cover that is properly supported to prevent snow and water from pooling. Shrink-wrapping is also an excellent option for maximum protection.