Heartleaf philodendron is a popular house plant because it is extremely easy to grow. It's also known as the Sweetheart Plant.
A heartleaf philodendron can survive in low light conditions, but grows faster and produces more leaves in medium or bright indirect light. Never put any philodendron plant in direct sun.
Water well and then allow the top 50% of the soil dry out before watering again. Yellow leaves indicate over-watering and brown leaves mean the plant needs more water.
Basic household humidity is fine though higher humidity encourages larger leaves.