The first two of the new (we have had greenhouses since 1914 or so) greenhouses were built in 1984/5. After 26 years, my headers on the hot water heat system is failing. I have attempted temporary fixes for the past couple years, but this year I am replacing all the headers in the first two houses.
What is a header? A header is a distribution point. When hot water leaves the boiler and travels through 2.5 and 2 inch pipe under the benches, it goes up to the benches and is distributed through a header. The header is one inch pipe and transfers the water to micro tubing. The micro tubes are 1/4 inch in diameter. We have over 50,000 feet of micro tubing.
Here a few pictures of a header being replaced. The process is tedious.
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| This is an old header. Last year, I attempted to glue the leaking pieces. It worked OK. but its time for new. |
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| Header cut out. |
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| New header partially re-atttached to the micro tubes. |
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