Your philosophy is let's compare this strategy to paying your mortgage off in another way or putting your extra money in stocks or saving up to buy rentals or buying a sports car or going to Disneyland or starting a secret family with your secretary, it'll be fun.

Just keep an eye on how both markets are performing, and maybe start small, like taking out $50k, so you can test the waters without over-leveraging.

The type of heater installed is a baseboard heater, which heats up slowly and is designed to run consistently for optimal performance.

...if so, how is it performing?

If you can build confidence that regardless of how the STR performs, you will pay the rent every month and take all the risk. 

The new property has to perform enough better than what you have to pay the higher interest rate on the higher balance, AND ADDITIONAL profit just to payback the $65k you lost selling.

(Only if you are SERIOUS about real estate as your wealth/career vehicle.)Make sure you join a brokerage that is large, established, and has a reputation for top performance and excellent training.Once you learn the basics and get out into the field to see the state of the market, you'll learn the price points and be able to know a good/great deal when you stumble across it.I have made some of my best (most lucrative) buys from meeting with a seller who wants to list, and when we discussed the price, I knew it fit my parameters, so I bought it! 

Instead of this, I find it more helpful to look at percentile performance across the market for a specific asset type, and also to check comps.

Owners mistakenly ASSUME all PMCs offer the exact SAME SERVICES and PERFORM those services EXACTLY THE SAME WAY, so price is the only differentiator – so, they often select the first PMC they call or that calls them back!

Performing or non performing or both2. 1sts and 2nds ?