The actual cost to install a gas fireplace may vary depending on your location, the product selected, complexity of the installation process, additional accessories purchased, and other options. 1  Top vented gas fireplace inserts cost $750 to $3,000, and installation adds another $500 to $1,000. Top vented gas fireplace inserts cost $750 to $3,000, and installation adds another $500 to $1,000. 2  Direct-vent gas fireplaces cost $1,000 to $3,500, plus $500 to $1,000 for installation.
Stroke volume is also affected by the body's demand for oxygen, delivery of nutrients to the muscles and tissues and the removal of toxins, explains Cheetah Medical. For example, exercise increases the demand for oxygen, which results in a faster heart rate and increased stroke volume. People with a high level of cardiovascular fitness have larger stroke volumes and lower heart rates at rest than people who have a lower level of cardiovascular fitness.
â¢ With increased stroke volume, due to increased venous return and/or increased contractility, there. is an increased cardiac output and increased blood pressure. Page 15. Summary. â¢ Increases in peripheral resistance, blood volume, and cardiac output result in higher blood pressure. Conversely decreases in any of these factors lead to lower blood pressure. â¢ Three main sources of peripheral resistance: Blood vessel diameter, blood viscosity, and total vessel.