First of all, plumbing is for water movement (look it up)Thanks for the Shoah update Herr Goebbels.
All I have is 1 question. If there wasn't any crematoria what function did the ovens have? There certainly was no plumbing pipes to keep the barracks warm
Heating the residential buildings would probably have been done as in most Military barracks Internment camps: Wood Stove, Kerosene heaters etc
The assertion is not that there weren't any crematoria/ovens
Since most all deaths in the Camps was by Typhus (14,000 Inmates at Belsen died from Typhus AFTER being liberated by the British)
The most sanitary way to deal with typhus is by preventing the disease from spreading. Cremation of infected bodies helps prevent the spread of the disease.
Any "Gas Chambers" would have been used for the delousing of clothing; The buildings cited as Gas Chambers were neither intended, designed nor used for the extermination of Inmates.
If you want more specifics, read the entire article; the truth doesn't abhor the sunlight of honest scrutiny / examination.
Your puerile "Dance Clown" etc snippets belong on Kindergarden playgrounds, not adult Forums