Can anyone help me with my problem? We have no hot water. There is a tiny trickle out of each faucet, sink, shower, mostly ice cold. I've had the serviceman here today. He replaced the "mixing valve" on the tankless heater. Did not help at all. Says the coil is plugged up solid, can't get out here until after Tuesday. It has already been three days! My family is out of patience! Is there anything that I can do to at least get SOME HOT WATER to shower with until we get it fixed right?? I will buy a portable hot water supply... if there IS SUCH A THING. Please help.

Can anyone help me with my problem? We have no hot water. There is a tiny trickle out of each faucet, sink, shower, mostly ice cold. I've had the serviceman here today. He replaced the "mixing valve" on the tankless heater. Did not help at all. Says the coil is plugged up solid, can't get out here untill after Tuesday. It has already been three days!! My family is out of patience! Is there anything that I can do to at least get SOME HOT WATER to shower with untill we get it fixed right???? I will buy a portable hot water supply ...if there IS SUCH A THING. Please help.
I would suggest a camping shower (http://www.walmart.com/catalog/product.do?product_id=4698021) this is from Walmart but any large retail chain that has a decent variety of outdoor equipment should carry one. Good luck!