Thermostat Housing Hose and Water Heater

[HPLou]

Good Day Last winter I disconnect both hoses from the water heater so I can drain it for the winter. Both hoses were coming from the Thermostat Housing.
Last week end I started both engines with muff to verify if all past winter OK. I have forgot to join the 2 hoses together during the warm up of the engine so that the water could circulate. I Then realized that they were no water coming out from those hoses when the engine was running.
If this normal ?
I thought the purpose of these hoses were to bring warm engine water to the water heater so that we can have warm water during navigation.
Thank You

 

[Bondo]

Both hoses were coming from the Thermostat Housing.

Ayuh,..... There should be one hose comin' outa the block, just before the t-stat, 'n the return line should go to the circulatin' water pump housin',.....

 

[HPLou]

Thanks Bondo
I my case, both hoses are coming from the thermostat housing. I will go to my boat tomorow, if the weather is OK, and will take pictures of my setup.
I will also look for a hose on the block just before the thermostat. I'll get back.