Making a system

[Ihsnshaik]

If you have 19 tanks through 5 heaters in your sumps assuming they all are connected I would hope so

 

[Southjerseycichlidz]

I feel your pain.
My basement averaged about 50'F in winter, so all tanks had 3" styrofoam panels on the back, bottom and sides, and sumps sometimes also had the front covered. Most of my heaters were placed in sumps and any PVC was wrapped in flexible insulation.
My goal was to keep any average tropical tank water temp at @70'F Jan, Feb and Mar, and my heat, light, and pumpage bill for just the fishroom averaged about $300 per month, in summer when I unplugged heaters, the bill was less than half.

Yea that's where I'm at I gotta figure something out lol may try covering the tanks like previously suggested

 

[xraycer]

If you have 19 tanks through 5 heaters in your sumps assuming they all are connected I would hope so

Doesn't matter, its about the volume and heat loss/retention. 5 heaters using X amount of wattage to heat X volume is the same as 19 heaters, each using less wattage, to heat individual tanks

 

[Deansy]

Doesn't matter, its about the volume and heat loss/retention. 5 heaters using X amount of wattage to heat X volume is the same as 19 heaters, each using less wattage, to heat individual tanks

You are very right, but wouldn't the larger water volume better hold a temp better and therefore not beed the heaters as much? I suppose it wouldn't make a big difference, but it might help a little.

Also, wouldn't a system save electricity on the Filter side of things?

 

[Southjerseycichlidz]

Has anyone ever tried heat tape? Putting it under the tanks on the rack. A friend does it with a ball python rack wondering if it would work for the tanks

 

[xraycer]

You are very right, but wouldn't the larger water volume better hold a temp better and therefore not beed the heaters as much? I suppose it wouldn't make a big difference, but it might help a little.

Also, wouldn't a system save electricity on the Filter side of things?

A larger volume would definitely retain heat longer. I'm not sure if the OP is looking to consolidate his stock into fewer much larger tanks.

In regards to saving electricity on filtration side; it would depend on the pumps he'll be using. Plus larger volume would require larger pumps, which would equate into higher electrical consumption over smaller filter systems