This is in my basement of the house the room is small room 10'x13' so 130 square feet. The walls have good insulation, drop ceiling (previous owner)and concrete floor(going to put tile down this spring). The house furnace heats the room for me, I have a vent in the room that is wide open and I keep the room closed that holds all that heat in the room. We heat the house to 70-72 but as the heat has no where to go it just stays there warming that room more than the others. I do have a small fan running to keep the air moving around. I have a small space heater I could use for the room but it hasn't been needed. In the summer I close the vent so the AC doesn't cool the room off but sometimes I have to open up the blanket to allow some cooler air in because it does hold heat well.
If that doesn't answer all the question let me know glad to share.
I have been using forums to do my fish talking too, I do a lot of reading then I try what I learn in my room. Some times there is a big learning curve but I enjoy it. I have heard of The Reef it is on my list to check out next time I'm down there. We have 5-6 big chain stores here in town but only one Local owned. It isn't a bad store kinda dark but the owner is a great guy can't say the same out other working there.
If you make it down let me know. Always could use an excuse to run to the fish store!