Stop in for a cup of coffee

Back to working on no heat issue in Sub today. Have hot hoses on both sides of heater core, don't think it's the thermostat. I know I have a broken clip on blend door, I wedged that OPEN, don't know if that makes more or less heat, will likely start there and possibly remove wood block I wedged in there and take a good look at how that works. Blend door is manual in this truck I believe, no actuator. Also don't think the issue is water pump because no overheating and can feel water squeezing by when I squeeze top radiator hose. Might verify that by pulling hose that comes off of intake into heater core, dunno.