Refrigerator boiler tube insulation

[dpgllg]

I am replacing my Dometic RM2652 cooling unit. The insulation in the boiler tube is saturated with the yellow powder from the leak.

Can I still use this insulation?

Can I replace it with the fiberglass wall insulation from home improvement stores?

I've looked online and cannot find any information on this. If I need a special type of insulation where can I get it?

Thanks for your help

Dave

[dougrainer]

RLS7201 wrote:
I don't normally disagree with Doug but my research indicates that you can use fiberglass insulation for the boiler.
My Dometic 2807 does indeed use fiberglass insulation on the boiler.

What temperature does fiberglass melt at?
Fiberglass cloth retains approximately 50 percent of room temperature tensile strength at 700 F (371 C); approximately 25 percent at 900 F (482 C); with a softening point of 1555 F (846 C) and a melting point of 2075 F (1121 C).

Richard

I appreciate that info. I have NEVER had to replace an insulation pack on a CU. They ALWAYS come already packed. Since I assumed Home Fiberglass was not the best, that is why I stated that. After research to verify what you posted, I now realize how safe and durable Fiberglass insulation is in regards to flame and a Heat source. Doug

[ScottG]

The high end of the acceptable temperature range (not the failure limit) for fiberglass insulation is 1000 degrees.
So yes, it will work just fine.

[RLS7201]

I don't normally disagree with Doug but my research indicates that you can use fiberglass insulation for the boiler.
My Dometic 2807 does indeed use fiberglass insulation on the boiler.

What temperature does fiberglass melt at?
Fiberglass cloth retains approximately 50 percent of room temperature tensile strength at 700 F (371 C); approximately 25 percent at 900 F (482 C); with a softening point of 1555 F (846 C) and a melting point of 2075 F (1121 C).

Richard

[midnightsadie]

might try blowing it off.

[dougrainer]

The Insulation packet should be able to withstand up to 700 degrees. The normal operating temp is 350 degrees. When the CU fails(leak or blockage) is when the flue temp can reach over 700 degrees. So, NO, you cannot use fiberglass insulation. Since I rarely use after market Cooling units, the Dometic and Norcold units come with the insulation. Are you positive the CU your using has no insulation? If so, contac the people you purchased from and see if they offer the insulation pack.