radiant heat...

Magnum Man

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so, often people complain, about the cost to heat their aquariums... so long as they are in your house ( sorry, this excluded @GaryE ... ) the aquariums act as radiant heater for your home, so in theory, your furnace shouldn't have to run as much... aquarium heaters are pretty efficient, for what they do, as far as electric heat... I know often gas, is cheaper over all to heat with, but there are still many many houses that heat with electric today...

there you go... a good excuse to buy a new aquarium
 
Well, I'm going to say look at solar! OK, I live in an area of high cost of both electricity & gas. We only pay the "distribution" fee each month. ~$25 or $30 maybe now. but we'd pay that anyway & might include gas hot water for 2 (but not gas heat). We pay nothing else for electricity; heavy AC users, pool owners, 4 tanks, no "time of use" restrictions. It's been fabulous!!! We're thinking about a heat pump soon to replace our old dying gas furnace while the rebates last.
 
I've wondered how the British hobby has handled their energy costs. It seemed like a lot of people were leaving the hobby when the energy crunch hit there.

Tanks aren't efficient heating sources, though I think we should all say they are to grow the hobby. I mean, telling the truth is so 20th century. If you build an insulation wall around a tank, it looks awful, but you can do things. Some insulation is good. A tight cover is good. Several tanks bunched in a room together is better than one. You can then heat the individual room.

And as I always repeat, research saves money. Look at the temps your fish really need, not the ones the pet store says. This hobby was popular before 99% of us were born, and in my Canadian environment, houses were poorly heated back then. Tropical fish will die if cold, but if you can maintain their lower range natural temps, they thrive. I know local aquarists who insist on having tanks in the 30s/80s, and who are harming their fish and their budgets with that level of heat. Look into it, and a lot of fish are fine at 22-24 decrees, but are kept at 26 to 30. It's expensive and wasteful.
I bought some preset heaters cheap at one point, and they kept their tanks at 26c. Why? The fish liked 24c.
Follow this and there will be some unemployed Discus and other really warm water species - but we don't keep many of those.

My neighbour up the road put in solar panels, and I hope to talk with her in the Spring. It's a big cash outlay here, and in comparison to @fishorama 's California habitat, our energy demands for heat are way higher. Plus California is rumoured to have this mythical thing called sunshine. That thing that vaguely glows greyly through the clouds is apparently free range down there. People who attempt to sun worship here rapidly become atheists.
 
It was posted in jest, but may be missing the point, I have a well insulated, but unheated room in the house we call it a "mud room" on the farm, it's the main entrance we use into the house, so the doors open and close quite a bit, and there is a lot of heat loss to that room during the winter it's probably 8 feet by 16 feet in size, and has a door between that room and the main heated part of the house... a 45 gallon and 65 gallon heat the room... it used to get cold enough to freeze and explode soda cans, before I put the tanks in there, and now even at - 40 degree F. , the room remains comfortable... the same effect happens with the main tanks in the rest of the house, that is heated, it's just not as noticeable...
 
Do you have a sense of what it costs to heat the mudroom tanks? I know energy costs don't translate well internationally dollar for dollar, but do you think it adds a lot?
 
on the farm, it just gets absorbed, Mrs. complains about the electric bill, but it certainly isn't wasted like the electricity used for heated animal waterers for all the farm animals... I always wait as long as possible before plugging all those in... we run 5 of them through the coldest part of the winter... the biggest draw, is for the cattle tank, which is a small heater for the size of cattle tank and doesn't completely keep the big tank ice free, but melted enough they can drink, that is a 1500 watt heater... the other 4 use less power, but the tank heaters in the house use less power, and don't run 100% of the time, and lose heat to the insulated room, rather than to the atmosphere outside...

I have a 220 volt electric baseboard heater in that room, that we quit using, long ago, because it cost too much... with the aquariums, I believe the cost to heat must be similar degree for degree, but I get the benefit of the aquariums to look at, and the efficient led lighting, so we rarely turn on the light switch for the room lighting...

so I expect similar costs, but with benefits, to just running traditional electric heat in that room...
 
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It's interesting for people who make a living with high energy use businesses. My brother in law's retiring from farming, and selling off his land and equipment out west. He's going to get a shock when a lot of purchases and expenses he takes for granted cease to be business tax expenses.
For a while when aquarium equipment wasn't nearly as energy efficient as it is now, my fishroom was fine because it was a small business expense. It was a necessity for me to be able to sell the info I'd gathered from it as a sideline income. It was a rough jolt when the internet killed print and everything was free. Once lower energy use lights and such arrived, it got better, but I was glad I have an understanding partner.
I get a sense a lot of the urban members here really focus on energy costs in everything they do.
 
I moved back in with my parents a little over a year and a half ago and finally just getting set back up with aquarium stuff and my father had a mini heart attack when he saw the wattage of my heaters lol
 
When I was a kid, a couple of our homes had hot water radiator heating. Very efficient. They even had a protective guard to prevent getting burned. Super low maintenance. Vent the air twice per year. Downside was it couldn't rapidly heat a room like forced air and temperature control was tricky. There were underfloor water heating systems when we lived in Asia. Also, very efficient.
 
At my peak I have had 28 tanks but typically it was 20 year round. I also have one of the most expensive electric companies in the country- ConEd. In 2025 it ranked #5 in terms of highest pricing per Kwh, What makes it worse for us is our central heat and AC are forced air by fan. Our water heater is electric and until a few years ago our stove and ovens were also electric. They are now propane which is not cheap either as is our whole house back-up gennie.

Any time our month;y electric bill is under $500, we celebrate, There have been months in the past where it was over $1,000. Our house is 2 buildings and about 3,000 square feet total. It has very tall vaulted ceilings. It is built on slab with no basement nor attic.

Making things more difficult is the fact that the entire living room and dining area are glass for one wall, There are two sets of sliding doors. Plus the far end is similar but it leads to the screen terrace. The windows are all awning type with huge undivided glass surfaces. The goal was to maximize views of the outdoors around the place.
 
A long, long time ago I had an aquarium room. It wasn't a very big room but had tanks in a full U-shape going around all the walls. The only heating my place had was those little thru-wall units like cheap hotels have and they were very underpowered for the rooms they were in, which was kind of crazy for the winters the area saw. There was no thru-wall unit in the aquarium room and none was necessary, even in the worst of the winter cold. I would go in there to warm up. Similarly it was often the coolest room in the summers. Very well buffered. I then moved out of that place for a year and came back to it with vastly fewer tanks. The room was definitely not as cozy in the winter after that, also a lot hotter in the summer. Unfortunately I think my current home with it's crazy open floor plan would be a little hard for exploiting aquarium heating...unless we're talking like a big indoor pool in the middle of the place...darn it you've put thoughts in my head now.
 
Another idea is to use a "Kill-o-watt" meter to see what power each appliance or tank heater uses. 1 of our libraries in MA had 1 you could "check out", That would give you a better cost/effect based on your usage & area pricing.

Maybe a neighbor, church member etc. may have 1 you could borrow?
 
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one thing to remember, is the wattage of the heater, and the fact that if it's big enough for the tank, it will only be running a fraction of the day, not continually... even in the room with no heat, I rarely catch the heaters heating...
 
well I brought this thread back up, as I experienced something for the 1st time today...

super cold outside, and the 2 tanks in my insulated, but unheated room, have been fine, holding the room, right around 50 degrees, with the heaters cycling normally... the 45 gallon has 2 - 500 watt heaters, and the 65 gallon, has 1 - 800 watt heater... normal cold winter, they hold that room over 60 degrees...

but our furnace went out, in this brutal cold... this didn't effect the unheated room, or those tanks, until I ended up plugging a 1500 watt space heater, into another outlet on that circuit... it apparently worked fine, until later, at some point. all 3 aquarium heaters kicked on, while the other heater was also running at max, and it tripped the breaker, which I didn't notice for about an hour and a half... yep, the room got colder ( not freezing though ) but when I tripped the breaker, after moving the space heater to a different circuit, the tanks had both dropped 15 degrees, in that hour and a half... so while they make nice radiant heaters, they lose their warmth quickly, in a freezing room, that they are supplying the only heat...
 
Hmmm, that's brutal.

I hope that furnace gets fixed asap. You have wonderful fish and enjoy your tanks immensely. These kinds of disasters are disheartening. I started back up right away after our version, but a number of excellent local aquarists didn't, and never kept fish again.
 

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