To present a slide show I downloaded the Chrome browser. to show the browser screen on the Chromecast receiver monitor/TV. For the slideshow I added the Chrome browser iSlide extension. I found that I could not use it directly to present a folder of photos on the laptop.
Installation of water heater requires a plumbing permit. I recently had a water heater installed and the contractor got a permit. When the inspector came, he asked why he was there. I replied that I was told a permit was required to replace a water heater, but he said he had never heard of such a thing.
When shopping for your water heater, you'll want to check your state's requirements. Sears carries a number of gas water heaters that are compliant with California state laws. Even if you don't live in a state with specific requirements, you fan find a wide variety of options that will best suit your water usage needs.