Engine pack for modular retro-fit shower pod

An engine pack 9 is disclosed which may be for use with a modular bathroom pod and which has a water heater 2 with a cold water inlet 1 and a hot water outlet 6. It also has a control unit 4 and at least one ventilation duct. The ventilation duct may have a fan 5 and there may also be a water pressure booster pump 7. A combined modular bathroom pod and engine pack is also disclosed where the pod has an enclosure with a metal frame with a flush outer face and with cladding, where the inner face is a laminate substrate bonded solid surface resin which is secured to the frame with recessed mechanical fixings. The pod may have a shower, WC and a hand basin and the metal frame may be stainless steel which may be bolted to another fame. The fixings may be concealed with resin pellets.