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Forum: Solar Heating

10-23-12, 12:43 PM

Replies: 19

Pressure testing old solar hot water panels

Views: 15,701

Posted By randen

Seeing that the one tube is split I would suggest...

Seeing that the one tube is split I would suggest silphos. This brazing is used in refrigeration it requires the heat of oxy-acetelene but its magic. It fills voids and is a little easier than...

Forum: Solar Heating

09-19-12, 09:50 AM

Replies: 19

Pressure testing old solar hot water panels

Views: 15,701

Posted By randen

Ryland Don't mention to GaryGary and some...

Ryland

Don't mention to GaryGary and some others that are fabricating their solar collectors with silicone between the copper risers and aluminum fin. Don't tell Solcan who have been manufacturing...

Forum: Solar Heating

09-17-12, 07:09 PM

Replies: 19

Pressure testing old solar hot water panels

Views: 15,701

Posted By randen

For mounting the glass we used a premium grade...

For mounting the glass we used a premium grade silicone caulking (black). First we placed 3/8" x 3/16 foam weather stripping as a dam to prevent the silicone from migrating into the panel. This...

Forum: Solar Heating

09-17-12, 11:30 AM

Replies: 19

Pressure testing old solar hot water panels

Views: 15,701

Posted By randen

I just used a good silicone caulking to mount the...

I just used a good silicone caulking to mount the glass.( just like an automotive windsheild) You will never need to remove it. even if you do a utility knife will do it.

Randen

Forum: Solar Heating

09-16-12, 10:07 AM

Replies: 19

Pressure testing old solar hot water panels

Views: 15,701

Posted By randen

One last tip I had used muriatic acid to clean...

One last tip I had used muriatic acid to clean the glass. The low iron glass I had received was used and had a film on it that window cleaner wouldn`t touch. The muriatic (hydrochloric acid) work...

Forum: Solar Heating

09-16-12, 10:03 AM

Replies: 19

Pressure testing old solar hot water panels

Views: 15,701

Posted By randen

I had simply used some copper end caps for...

I had simply used some copper end caps for testing and silver soldered in a tire stem removed and cleaned up from an old steel rim. The pressure guage was on the other cap with a brass cap silver...

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