Farron, thank you for that answer, this will ease a lot.

 

May i continue ... with a question.
I would like to build a 150 ltrs. heat storage tank.
An open system, which i want to feed by the motor cooling circuit,

but also by an oil stove and maybe in future by a solar element

To dimension the heat coil in that tank for the motor circuit,

i would need the amount of flow of the coolant liquid.
I am aware that this will depend on the RPM of motor, but just to get a feeling for that.

Of course i would be pleased, if anybody had such a configuration in operation or any other experience,

to get further hints for that issue.

 

he ;; i new on the forum ,need help to choose a beta diesel engine for a desplasement boat
1-desplasement a dwl5850lb draft=2.9
2-length overall =22''-
3-kool keel area up to 30 kw-
4-shaft 25mm to 32mm max/ prop=18''x10 or 18''x9'' or 17''x10'' 3 blade
5-engine deliver 12hp full torque 75%rpm-1800-2500rpm a hull speed=6-7knots max
6-need to be 12 -15hp top of the torque curve will be at the range of 75-85%rpm
7-a dry exhaust pleasure fishing tug boat.
8-gear box reduction=2.5.1 that turn prop at-- 700-800rpm
i will like to fit a beta engine on the boat ,this are a recomendations from desingner
of the boat. i hope that you people from BETA MARINE help my with the model type
suitable aprox on the chart
regards carlos

hello farron
nice to hear fron you people at beta marine,thanks for the advice.
i will like to know the best prop zize to fit on the 20hp engine and if the expancion tank
on keel kool engine come with the motor from factory on all this engines.
  king regards      carlos bairo  

hello farron 
the desplasement a DWL=5850lbs max
lengt overall= 21'
draft =2'9''
speed=6.5knots max

best regards carlos