Staying under heat may not be
essential, at this stage, but that depends on your local climate. I have successfully placed my Indian Runner ducklings into an enclosed run and naturally insulated housing for the past week (they are 5 and 4 weeks old). They are not quite fully feathered, but they are proving hardy.
You can reduce the use of the heat lamp by one hour per day so that in one weeks time, that is 7hrs heat lamp time saved.
They do grow incredibly quickly (and so does their muck and stench!) but, its an interim stage between being home grown and being outdoor dependent
In the grand scheme of things, its actually quite short lived.
I have not raised any ducks for eating. However, I have done my research and I am guided by John Seymour's book on "Self-Sufficiency"; in that, he recommends eating at 10 weeks (due to the feathers being brittle before and after that time). To eat at 10 weeks, you would need to fatten them up with a high protein diet. Others on this forum disagree, and that's ok; we choose who's advice we heed
based on our own criteria. Runners will not produce a lot of meat; they are by nature lean birds. I have no experience of pekins.
If egg returns are your reason for having ducks, I do know Runners are good egg producers (no knowledge/experience of Pekins), so that may make a difference in your attitude towards eating now or longer term protein production. Only you can judge that one.
Babies of any type (including human
) are icky and demanding. The only positive ducklings have over human babies are: they are more independent at a very much faster stage! Point of lay for a duck is 20 weeks.
Its a pity you feel discouraged by the ducklings needs; they do grow incredibly fast and are a "demand" for such a (relatively) short time. But, I respect your point of view