Do you use and re-use foundation or just the frames?Each hive design has it's pros and cons, but building a TTBH eliminates the biggest con of a TBH - interchangeable frames with Langs . I recommend build a TTBH and a Lang and you be the judge . There is wealth of information about them on this and other forums.
It sounds interesting. Looked at from the front, your hive must be rectangular (roughly 19" wide if you can hang a Lang frame in it). This means a significant departure from the traditional KTBH, where the cross section is triangular, narrowing to the bottom.Bill,
>Do you use and re-use foundation or just the frames?
I've done it all ways. Kind of depends on what I have to work with and the goal. You can mix and match too.
Note: My TBH's have front entrances, not side. The bees tend to keep brood towards the front (except 1st bar is usually honey comb) and honey stores to the rear.
For swarms, top bars or empty frames with wedge turned as a guide works well since swarms are comb making machines.
For Lang Nucs to TBH, install the nuc in the front with a couple empty top bars, empty frames, frames with foundation, or frames with drawn comb then the follower board. Cycle the nuc frames to the rear (or completely remove) as brood hatches keeping a couple empty top bars/frames in between.
For TBH to Langs, just the reverse.
Same basic beekeeping principles except Langs go up and TBH's go back.
Harvesting honey depends on top bar/ frame type.
Hope this helps,