Greenhouse Heater Issue

Steve Marak via pbs pbs@lists.pacificbulbsociety.net
Sat, 06 Nov 2021 14:04:30 PDT
Thanks to all who responded publicly and privately to my question about 
failure points/spare parts/maintenance on greenhouse heaters. I 
appreciate all the input.

I'll keep a spare igniter module, as Roy mentioned, and depending on 
price a couple of other items too such as the ignition control board. 
Mark Mazer had several good suggestions, including a good long cleaning 
brush and spare fuses, for heaters that have internal fusing.

I think Arnold mentioned thermal mass, in the form of water. I'm a big 
believer, and during what is known locally as the Great Ice Storm of 
2009 it saved a lot of our plants. We have a 350 gallon tank of RO 
water, and I had stacked scores of old cat litter jugs filled with water 
under the tables. We were without power for more than 3 days, with low 
temperatures around 12 F each night. What we couldn't triage to the 
house had to take its chances. All that water provided over 150 million 
calories, and the temperature in the greenhouse never fell below 32 F. 
We lost a few things, but far less than I feared. Bizarrely, some hybrid 
Phalaenopsis orchids were all in bloom 6 weeks later.

Steve

On 11/1/2021 9:58 AM, Roy Herold wrote:
> I'll add my two cents (two BTUs?):
...
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