We Fired Up A Roman Hypocaust - For 8 Days Straight! For eight days, a team of volunteers heated our reconstructed Roman hypocaust continuously. Our hypocaust is based on archaeological evidence from the remarkable Sparsholt Roman Villa, located around 6 km NW of Winchester, England. We Fired Up A Roman Hypocaust - For 8 Days Straight! TOPICS:HistoryScienceTravelKEYWORDS:godsgravesglyphshypocaustromanempiresparsholt"About Us -- Butser Ancient Farm is an open-air experimental archaeology museum and active research centre, learning about the past by recreating it.