Heating/drying a shed

[Blakeatron]

I have a timber shed, 50mm celotex insulation and ply clad inside, felt roof also insulated and clad. 6" un insulated concrete floor.
No windows, 1 main door - 1 high level vent.

I am storing my bikes in there and as much as i try to dry them they are still going away damp, bikes are not rusting at the moment but i am worried its only a matter of time.
Shed although watertight feels a little damp - some mould spots and the odd cardboard box feels a little claggy.

I have power in there but was is the best option - heat or dehumidifier.

If heat what? An oiled filled and set the stat lowish, storage heater, greenhouse heater?

[Blakeatron]

The only thing with a dehumidifier - will it just suck the moisture from outside, what with having the vent?

Don't worry the bikes are lubed and oiled after every ride, but there will always be something that is missed. The children's bikes are also in there and I don't really take much car of them!

[Blakeatron]

Right I have ordered a 16l delonghi dehumidifier with external drain pipe and a small 250 watt shed heater with plug in thermostat.

I have covered the vent up with a hit and miss cover, the door already has seals on.

Updates soon when everything arrives!

[Blakeatron]

It seems to suggest that if you use the empty hose rather than the internal collector you can run continuosly - we will see. It also has a built in humistat so can have a play with that.

Time will tell!

All reviews and manuals say they work better when warmer - hence why i have also putchased the little heater.

[Blakeatron]

Now you tell me!

Hopefully this will work, if not will look at what you have suggested