We know that typing "www.ResidentialEnergyDynamics.com" into your web browser is a pain. We have tried to grab "www.RED.com", but it is unlikely to become available. However, we have been able to buy "www.REDcalc.com". We recommend you use this shorter web address (URL).
Of course, you can always bookmark (save as a favorite) the RED website in your browser so you never have to type it in again!