Best Thermwell Products Co., Inc Fiberglass Insulations

The Frost King SP57/11C is a vinyl-backed fiberglass insulation blanket measuring 3 inches thick by 48 by 75 inches with an R10 rating, designed for gas, oil, or electric water heaters up to 60 gallons. It improves heater efficiency and includes foil tape for straightforward installation, ideal for homeowners aiming to cut energy costs.

• Saves money on energy bills by boosting water heater efficiency
• All-season protection reduces heat loss year-round
• Easy DIY installation with included foil tape
• Fits most gas, oil, or electric heaters up to 60 gallons
• High R10 rating delivers superior thermal insulation

Exceptional R10 insulation value minimizes energy waste. Versatile fit for popular heater types and sizes. Includes tape for secure, hassle-free application.

Sized only for heaters up to 60 gallons. Fiberglass may irritate skin during handling. Tape roll is basic and may need supplements for large jobs.

Frost King SP55 is 12-inch x 2-inch x 15-foot fiberglass and foil duct insulation with a 4.3 R-value that reduces vibration on pipes and ducts. DIY homeowners insulating heating/cooling pipes, ducts, auto hoods, or trucks should buy it for easy wired or taped installation.

• 4.3 R-value delivers superior thermal protection to cut energy costs on hot and cold pipes
• Reduces vibration for quieter operation on ducts and vehicles
• Flexible fiberglass design conforms easily to pipes, valves, and irregular shapes
• Secure installation with wire or tape for hassle-free DIY application
• Versatile use on heating/cooling systems, auto hoods, and trucks

High 4.3 R-value for effective insulation. Vibration-dampening properties enhance comfort. Easy to cut and secure in place.

Fiberglass material may irritate skin during handling. Requires separate wire or tape for securing. Best for straight runs, less ideal for complex joints.

Frost King Fiberglass Pipe Wrap Kit features a 3"x1/2"x50' roll with vapor barrier to insulate pipes of all diameters and overwrapping heat cables. Its 1.6 R-value and easy application make it ideal for homeowners preventing pipe freezing in cold areas.

• Effortlessly insulates pipes of any diameter to save energy and reduce bills
• Overwraps electric heat cables to reliably prevent water pipe freezing
• Includes plastic vapor barrier to eliminate pipe sweating and condensation
• Provides 1.6 R-value for effective thermal protection on hot or cold pipes
• Covers up to 34 feet of 1/2-inch pipe for broad home applications

Versatile coverage for multiple pipe sizes including 1/2", 3/4", and 1". Durable fiberglass construction with included vapor barrier. High 4.4 rating confirms reliable performance.

Fiberglass material may irritate skin during handling without gloves. Requires manual cutting to fit specific pipe lengths. Basic R-value may need layering for extreme cold.

Frost King CF55 is a foil-backed natural cotton wrap for insulating heating and AC ducts. Its standout no-itch formula allows safe handling without gloves, masks, or goggles, ideal for DIY homeowners and HVAC pros.

• Effortless insulation that seals in energy savings on HVAC ducts year-round
• No-itch natural cotton comfort—no gloves, masks, or goggles required during install
• Reduces duct vibrations and noise for quieter home comfort
• Class A fire rating ensures top safety for your heating system
• Foil backing delivers maximum thermal efficiency and condensation control

Safe, itch-free handling beats traditional fiberglass. Class A fire-rated for reliable protection. Effective vibration dampening and insulation power.

15-foot length may require multiple rolls for larger jobs. 1-inch thickness best for moderate climates, not extreme cold. Cotton material could absorb moisture if not sealed properly.

The Frost King fiberglass pipe wrap kit (3" x 1/2" x 25 ft) delivers 1.6 R-value insulation with a plastic vapor barrier to cover up to 17 ft of 1/2-inch pipes. It's a simple solution for preventing water pipe freezing and stopping sweating on cold pipes, ideal for homeowners insulating hot or cold lines.

• Prevents costly pipe freezing during winter with reliable fiberglass insulation
• Eliminates sweating and dripping on cold pipes for a dry environment
• Easy DIY installation on pipes of all diameters, saving time and money
• Includes 25 ft vapor barrier to block moisture and enhance efficiency
• Provides 1.6 R-value for effective hot and cold water pipe protection

Simple and effective for various pipe sizes. Strong R-value insulation performance. Includes vapor barrier for complete protection.

Fiberglass material may irritate skin during handling. Yellow color stands out in visible installations. Coverage limited per kit for longer pipe runs.

This 1-inch thick foil-backed fiberglass wrap insulates 3-inch pipes over 25 feet with a built-in vapor barrier. It cuts heat loss on hot water lines and prevents sweating on cold pipes, making it ideal for homeowners insulating exposed plumbing.

• Reduces energy-wasting heat loss from hot water pipes
• Prevents condensation and sweating on cold water lines
• Built-in foil vapor barrier blocks moisture effectively
• Simple one-step installation saves time and effort
• Durable fiberglass provides long-lasting pipe protection

Effortless one-step installation. Proven to cut heat loss and stop pipe sweating. Includes vapor barrier for added moisture control.

Designed specifically for 3-inch pipes. Fiberglass may irritate skin during handling. Manufactured in China.

Frost King SP1 is a safe fiberglass insulation roll measuring 16" W x 3/4" T x 48" L, fire retardant and heat absorbent with no asbestos. Homeowners and mechanics should buy it for insulating heating/cooling pipes, ducts, auto hoods, and trucks.

• Versatile protection for pipes, ducts, vehicles, and walls to maintain temperature efficiency
• Fire retardant design enhances safety in high-heat areas
• Heat absorbent properties reduce energy loss and improve insulation performance
• Easy cut-to-size for custom fits in tight spaces
• Noise reduction quiets vibrations from ducts and engines

Safe fiberglass construction free of asbestos. Fire retardant and heat absorbent for reliable performance. Multi-purpose for home, HVAC, and automotive uses.

Fiberglass handling may irritate skin, requiring gloves. Fixed roll size limits coverage for large areas. Best suited for specific applications like pipes and ducts.

Frost King CF1 is a 16x1x48-inch sheet of 100% recycled denim insulation that's completely non-irritating with no gloves, masks, or goggles needed. DIY homeowners should buy it for quick, safe insulating, cushioning, and noise dampening in pipes, ducts, and walls.

• Handle safely without gloves, masks, or goggles for itch-free installation
• Eco-friendly 100% recycled denim reduces waste while insulating effectively
• Versatile for insulating pipes, ducts, walls, plus cushioning and noise reduction
• Easy to cut or tear to custom fit any space without special tools
• Provides maximum insulating power in a thin, flexible 1-inch profile

No irritation during handling or installation. Made from 100% recycled materials. Multi-purpose for insulation, cushioning, and sound dampening.

Only 1-inch thick, may require layering for heavier insulation needs. Best for light-duty applications, not extreme temperatures. Single size limits options for larger projects without buying multiples.