E and I were away for a week and I had high hopes for the furnace to continue working during this time, especially since the high last Friday here was 23 degrees! Well we came back to this:
Turns out the furnace at some point stopped working and I have been on a whirlwind of ups and down the entire day. Let me walk you through it:
DOWN: The furnace stopped working and it was cold and my plants are SAD!
UP: It seems likely the furnace lasted for a bit since the low recorded by my thermometer was only 28 degrees (the low outside was around 17 degrees). Also, most of my plants (minus that super sad avocado above) seemed to be alright. I suspect the furnace was fine until it ran out of oil sometime during the week I was gone.
DOWN: I’m pretty sure the furnace ran out of oil and I thought I put 5 gallons of diesel in right before we left. This will cost a fortune to heat!
UP: Wait – I go get diesel and my gas can is only 2.5 gallons! Maybe this isn’t as bad as I thought!
DOWN: I put the new 2.5 gallons of diesel in the tank and press the restart. And no heat. The furnace turns on, I can sort of hear a spraying noise, and then the safety kicks in and the whole thing shuts down. Fuck!
UP: I am determined to fix this! While looking up YouTube videos about fixing furnaces I see something about bleeding your furnace if it runs dry. This seems very likely the issue since I’m pretty positive it ran out of oil (diesel is oil minus the red dye). I gather tools and prepare for battle with this fucker:
First I forget that the heater has to be on for this to work and think that maybe there is a total clog somewhere since I have removed the entire bleeder valve and there no oil to be seen… But luckily I remember! Air and oil sputters out. I try to restart…
DOWN: It does not start. I bleed it more. More air and oil. More oil. Now just oil. A steady of oil.
UP: IT’S ALIVE!!!!
Almost 60 degrees now (plus my really janky thermostat which definitely needs to be replaced – that’s for another time though)
And there you have it, my personal emotional roller-coaster courtesy of Siebring HeatMaster Oil Furnaces and Beckett AFG Oil Burners.
I had been using a blower we found in the greenhouse to get the fire in our wood-stove roaring, but then I realized that it already had a purpose! In the greenhouse! To keep the greenhouse warm in the winter I want to both absorb as much heat during the day and store it in things such as the pond and other high thermal mass materials and also insulate the greenhouse at night to keep in as much of the heat as possible. Our greenhouses are double glazed, meaning they have two layers of the plastic sheeting that covers the outside. Apparently this is actually a great way to insulate a greenhouse, and if you can get a nice amount of air between these two layers, then all the better. So we are trying out blowing up the greenhouse.
It is apparent from the holes that were already present in the inner layer of glazing and the fact that there are blowers in every greenhouse, that this was something the previous owners already were already doing. Hopefully this means that it will work!
I’ve been doing a ton of research about heating and insulating the greenhouses. This post from Midwest Permaculture seems awesome and has great information about things such as TMV and R values of different materials which is super useful.
THERMAL MASS VALUE BTU/Sq. Ft./degree F.
- Water 63
- Steel 59
- Stone 35
- Concrete 35
- Brick 24
- Sand 22
- Earth 20
- Wood 10.6
R-Value Measurements (hr°Fsq.ft/BTU)
- Fiberglass glazing- single layer R = .83
- Glass double layer R = 1.5 – 2.0
- Polyethylene Double 6mil film R = 1.7
- Glass triple layer 1 / 4 “ air space R = 2.13
- Polycarbonate 16mm triple wall R = 2.5
- Polystyrene (styrofoam) 1 inch thick R = 4.0
I need to check them out some more and read up on Midwest Permaculture
And then there’s always THIS
It’s a pond, again! E and I moved the pond the other day and it seems to be doing pretty well!! We decided on a more rectangular design and a much more shallow pond mainly because the ground on that side of the greenhouse was impossible to dig into and the cinder blocks are super heavy (plus I managed to injure my wrist slightly so lifting and moving cinder blocks is probably a bad idea). But I also think the shallower water will heat up faster because there is more surface area and I like that it can be filled up more to the top than I thought was safe with the double layer of cinder blocks (if I had mortared them together I think it would have been fine, but as they were I wasn’t too sure of their stability so didn’t fill the old pond up very much). So really, I think we will just say that it was on purpose and not because we failed at digging.
It’s looking nice and I have high hopes for it. It is definitely more in the sun, but still close enough to the electrical outlet for the pump which I still need to set up. I already think the water seems warmer than the old pond, but that may just be wishful thinking. Aesthetically I do like this one more and once there are more plants I think it will be ever better since they will hid the liner and it will look even more tropical!
I’m trying to convince E that we should put those fish that eat your callouses off your feel in it, but she thinks it’s a bad idea. I think a greenhouse foot spa sounds brilliant!